AP BIOLOGY

Detailed explanation-1: -Trophic level-Each level in a food chain where the transfer of energy takes place is called a trophic level.

Detailed explanation-2: -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-3: -The trophic level of an organism is the position it occupies in a food web. A food chain is a succession of organisms that eat other organisms and may, in turn, be eaten themselves. The trophic level of an organism is the number of steps it is from the start of the chain.

Detailed explanation-4: -Here, the organisms are ranked based on their food requirements. 1. First Trophic Level: Autotrophs. The first level consists of green algae and plants (the producers), also known as autotrophs. They utilize solar energy through photosynthesis and don’t depend upon other animals for fulfilling their food requirement.