AP BIOLOGY

Detailed explanation-1: -All of the interconnected and overlapping food chains in an ecosystem make up a food web. Organisms in food chains are grouped into categories called trophic levels. Roughly speaking, these levels are divided into producers (first trophic level), consumers (second, third, and fourth trophic levels), and decomposers.

Detailed explanation-2: -An overlapping food chain is also known as a food web. An overlapping food chain, or food web, will show multiple food chains and their relationships. Some food chains within an ecosystem will share members; for example, several different types of animals may eat a mouse.

Detailed explanation-3: -The many overlapping food chains in an ecosystem make up a food web. As you move up the energy pyramid, each level has less energy available than the level below. The amount of energy that moves from one feeding level to another in a food web. Producers form the base of the food web.

Detailed explanation-4: -Level 1: Plants (producers) Level 2: Animals that eat plants or herbivores (primary consumers) Level 3: Animals that eat herbivores (secondary consumers, carnivores)

Detailed explanation-5: -A food web is the overlapping of food chains within an ecosystem.