The Department of Education and Training for Victoria State in Canada explains in scientific terms how energy is transformed and transferred through the food chain in a very clear way, "Energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants. A small proportion of this chemical energy is transformed directly into heat when compounds are broken down during respiration in plants. The majority of the chemical energy stored in plants is transformed into other forms by an assortment of consumers, such as cows, rabbits, horses, sheep, caterpillars, and other insects eating plants. Some of the stored chemical energy in a producer such as grass is stored as chemical energy in the fat or protein in the first-order consumers that eat the grass. This energy is available for higher-order consumers. At each stage of a food chain, most of the chemical energy is converted to other forms such as heat and does not remain within the ecosystem."

Source: https://www.education.vic.gov.au/school/teachers/teachingresources/discipline/science/continuum/Pages/ecosystem.aspx#:~:text=Energy%20is%20transferred%20between%20organisms,process%20of%20photosynthesis%20in%20plants.

The Department of Education and Training for Victoria State in Canada explains in scientific terms how energy is transferred through the food chain in an ecosystem, "Energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants. A small proportion of this chemical energy is transformed directly into heat when compounds are broken down during respiration in plants. The majority of the chemical energy stored in plants is transformed into other forms by an assortment of consumers, such as cows, rabbits, horses, sheep, caterpillars, and other insects eating plants. Some of the stored chemical energy in a producer such as grass is stored as chemical energy in the fat or protein in the first-order consumers that eat the grass. This energy is available for higher-order consumers. At each stage of a food chain, most of the chemical energy is converted to other forms such as heat and does not remain within the ecosystem."

Energy is recycled in a food chain and flows between producers, consumers, and decomposers. There is no accumulation of energy; a final consumer does not end up with all the energy; it is recycled and transferred through prey/predator relationships.

Source: https://www.education.vic.gov.au/school/teachers/teachingresources/discipline/science/continuum/Pages/ecosystem.aspx#:~:text=Energy%20is%20transferred%20between%20organisms,process%20of%20photosynthesis%20in%20plants.