Understand the effect of limited resources on populations - Middle School Life Science

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Question

Which of these is NOT a resource?

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Answer

The answer is plastic.

Resources are defined as a substance or object in the environment required by an organism for normal growth, maintenance, and reproduction. Resources can be consumed by one organism and, as a result, become unavailable to another organism. When resources are limited, “competition,” increases and some populations of organisms will decrease. Some individuals may even be weaker or smaller without the resources they need.

Natural disasters, environmental changes, and humans can all have an effect on the availability of resources. When a drought occurs, many plants and animals die. When forests are cleared for human use, animals and plants do not have habitat.

Some animals are technically a “resource” for others. The predator prey relationship consists of the interactions between two species and their consequent effects on each other. In the predator prey relationship, one species is feeding on the other species. The prey species is the animal being fed on, and the predator is the animal being fed. Usually these populations go through cycles.

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