Explain how natural selection leads to an increase or decrease in the expression of certain traits - Middle School Life Science
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If a species of bird adapts to have a broader and shorter wingspan, this would be an example of .
If a species of bird adapts to have a broader and shorter wingspan, this would be an example of .
Tap to reveal answer
The answer is a "structural adaptation."
Adaptations are any change in the structure or behavior of a species which helps it to become better fitted to survive and reproduce in its environment. When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is a "structural adaptation."
Adaptations are any change in the structure or behavior of a species which helps it to become better fitted to survive and reproduce in its environment. When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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If a random mutation is favorable (meaning it helps the species survive) then what will happen to a population in which the mutation occurs?
If a random mutation is favorable (meaning it helps the species survive) then what will happen to a population in which the mutation occurs?
Tap to reveal answer
The answer is "the specific trait will be expressed more frequently."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "the specific trait will be expressed more frequently."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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Which of the following is NOT an example of a structural adaptation?
Which of the following is NOT an example of a structural adaptation?
Tap to reveal answer
The answer is "birds migrating in winter"
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "birds migrating in winter"
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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What could you expect about the expression of a specific trait if it is found to be harmful?
What could you expect about the expression of a specific trait if it is found to be harmful?
Tap to reveal answer
The answer is "all of these."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "all of these."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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How does the process of natural selection influence the expression of specific traits?
How does the process of natural selection influence the expression of specific traits?
Tap to reveal answer
The answer is "specific traits that are favorable are expressed more frequently in populations."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "specific traits that are favorable are expressed more frequently in populations."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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After many thousands of years of tectonic activity, an island splits apart and separates into two smaller islands. In the process, two populations of the same lizard species become separated and eventually, they cannot interbreed. One population even developed a slightly darker coloration. What was the result of natural selection during this extended period of time?
After many thousands of years of tectonic activity, an island splits apart and separates into two smaller islands. In the process, two populations of the same lizard species become separated and eventually, they cannot interbreed. One population even developed a slightly darker coloration. What was the result of natural selection during this extended period of time?
Tap to reveal answer
The answer is "speciation."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "speciation."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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Which example from the fossil record best represents that natural selection has been occurring over millions of years?
Which example from the fossil record best represents that natural selection has been occurring over millions of years?
Tap to reveal answer
The answer is "It is possible to find fossils of animals that no longer exist because they are ancestors of current species."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "It is possible to find fossils of animals that no longer exist because they are ancestors of current species."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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A random mutation occurs in a tree frog population. The tree frog has a new set of alleles that cause it to develop more lightly colored camouflage than its counterparts. Which of the following will determine whether this lightly colored camouflage will be expressed more frequently in the population?
A random mutation occurs in a tree frog population. The tree frog has a new set of alleles that cause it to develop more lightly colored camouflage than its counterparts. Which of the following will determine whether this lightly colored camouflage will be expressed more frequently in the population?
Tap to reveal answer
The answer is, "all of these."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is, "all of these."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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Which of the following explains why natural selection acts on an organism's phenotype and not its genotype?
Which of the following explains why natural selection acts on an organism's phenotype and not its genotype?
Tap to reveal answer
The answer is "Phenotypes influence the way organisms survive in their environments."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "Phenotypes influence the way organisms survive in their environments."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
← Didn't Know|Knew It →
Which of the following best illustrates natural selection?
Which of the following best illustrates natural selection?
Tap to reveal answer
The answer is "An organism with favorable genetic variation will survive and breed." Even though "The breeding opportunities in a population always go to the largest and strongest individuals." sounds like it could be true - the strongest and largest physical traits are not always the most advantageous for survival. Consider that some species require camouflage or being small for hiding from predators.
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "An organism with favorable genetic variation will survive and breed." Even though "The breeding opportunities in a population always go to the largest and strongest individuals." sounds like it could be true - the strongest and largest physical traits are not always the most advantageous for survival. Consider that some species require camouflage or being small for hiding from predators.
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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If a species of bird adapts to have a broader and shorter wingspan, this would be an example of .
If a species of bird adapts to have a broader and shorter wingspan, this would be an example of .
Tap to reveal answer
The answer is a "structural adaptation."
Adaptations are any change in the structure or behavior of a species which helps it to become better fitted to survive and reproduce in its environment. When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is a "structural adaptation."
Adaptations are any change in the structure or behavior of a species which helps it to become better fitted to survive and reproduce in its environment. When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
← Didn't Know|Knew It →
If a random mutation is favorable (meaning it helps the species survive) then what will happen to a population in which the mutation occurs?
If a random mutation is favorable (meaning it helps the species survive) then what will happen to a population in which the mutation occurs?
Tap to reveal answer
The answer is "the specific trait will be expressed more frequently."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "the specific trait will be expressed more frequently."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
← Didn't Know|Knew It →
Which of the following is NOT an example of a structural adaptation?
Which of the following is NOT an example of a structural adaptation?
Tap to reveal answer
The answer is "birds migrating in winter"
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "birds migrating in winter"
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
← Didn't Know|Knew It →
What could you expect about the expression of a specific trait if it is found to be harmful?
What could you expect about the expression of a specific trait if it is found to be harmful?
Tap to reveal answer
The answer is "all of these."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "all of these."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
← Didn't Know|Knew It →
How does the process of natural selection influence the expression of specific traits?
How does the process of natural selection influence the expression of specific traits?
Tap to reveal answer
The answer is "specific traits that are favorable are expressed more frequently in populations."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "specific traits that are favorable are expressed more frequently in populations."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
← Didn't Know|Knew It →
After many thousands of years of tectonic activity, an island splits apart and separates into two smaller islands. In the process, two populations of the same lizard species become separated and eventually, they cannot interbreed. One population even developed a slightly darker coloration. What was the result of natural selection during this extended period of time?
After many thousands of years of tectonic activity, an island splits apart and separates into two smaller islands. In the process, two populations of the same lizard species become separated and eventually, they cannot interbreed. One population even developed a slightly darker coloration. What was the result of natural selection during this extended period of time?
Tap to reveal answer
The answer is "speciation."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "speciation."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
← Didn't Know|Knew It →
Which example from the fossil record best represents that natural selection has been occurring over millions of years?
Which example from the fossil record best represents that natural selection has been occurring over millions of years?
Tap to reveal answer
The answer is "It is possible to find fossils of animals that no longer exist because they are ancestors of current species."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "It is possible to find fossils of animals that no longer exist because they are ancestors of current species."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
← Didn't Know|Knew It →
A random mutation occurs in a tree frog population. The tree frog has a new set of alleles that cause it to develop more lightly colored camouflage than its counterparts. Which of the following will determine whether this lightly colored camouflage will be expressed more frequently in the population?
A random mutation occurs in a tree frog population. The tree frog has a new set of alleles that cause it to develop more lightly colored camouflage than its counterparts. Which of the following will determine whether this lightly colored camouflage will be expressed more frequently in the population?
Tap to reveal answer
The answer is, "all of these."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is, "all of these."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
← Didn't Know|Knew It →
Which of the following explains why natural selection acts on an organism's phenotype and not its genotype?
Which of the following explains why natural selection acts on an organism's phenotype and not its genotype?
Tap to reveal answer
The answer is "Phenotypes influence the way organisms survive in their environments."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "Phenotypes influence the way organisms survive in their environments."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
← Didn't Know|Knew It →
Which of the following best illustrates natural selection?
Which of the following best illustrates natural selection?
Tap to reveal answer
The answer is "An organism with favorable genetic variation will survive and breed." Even though "The breeding opportunities in a population always go to the largest and strongest individuals." sounds like it could be true - the strongest and largest physical traits are not always the most advantageous for survival. Consider that some species require camouflage or being small for hiding from predators.
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "An organism with favorable genetic variation will survive and breed." Even though "The breeding opportunities in a population always go to the largest and strongest individuals." sounds like it could be true - the strongest and largest physical traits are not always the most advantageous for survival. Consider that some species require camouflage or being small for hiding from predators.
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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