AP BIOLOGY

Detailed explanation-1: -A food chain represents a simple linear pathway through which energy and materials are transferred from one species to another in an ecosystem. In general, food chains show how energy and materials flow from producers to consumers.

Detailed explanation-2: -A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another. Let’s look at the parts of a typical food chain, starting from the bottom-the producers-and moving upward. At the base of the food chain lie the primary producers.

Detailed explanation-3: -In ecology, a food chain is a series of organisms that eat one another (so that energy and nutrients flow from one to the next).

Detailed explanation-4: -The sequence of transfer of matter and energy in the form of food from one organism to the other is called a food web.

Detailed explanation-5: -Primary producers use energy from the sun to produce their own food in the form of glucose, and then primary producers are eaten by primary consumers who are in turn eaten by secondary consumers, and so on, so that energy flows from one trophic level, or level of the food chain, to the next.