AP BIOLOGY

Detailed explanation-1: -Energy is transferred between trophic levels when one organism eats another and gets the energy-rich molecules from its prey’s body. However, these transfers are inefficient, and this inefficiency limits the length of food chains.

Detailed explanation-2: -The transfer of energy between organisms is called a food chain.

Detailed explanation-3: -The food chain begins with a producer, which is eaten by a primary consumer. The primary consumer may be eaten by a secondary consumer, which in turn may be consumed by a tertiary consumer. The tertiary consumers may sometimes become prey to the top predators known as the quaternary consumers.