AP BIOLOGY

Detailed explanation-1: -In a predator chain, a plant-eating animal is eaten by a flesh-eating animal. In a parasite chain, a smaller organism consumes part of a larger host and may itself be parasitized by even smaller organisms. In a saprophytic chain, microorganisms live on dead organic matter.

Detailed explanation-2: -The living things that eat producers and other animals are called consumers. A predator is an animal that eats other animals. The animals that are eaten are called prey. Predators are at the top of a food chain.

Detailed explanation-3: -The second trophic level consists of organisms that eat the producers. These are called primary consumers, or herbivores. Deer, turtles, and many types of birds are herbivores. Secondary consumers eat the herbivores.

Detailed explanation-4: -Omnivores generally occupy the third trophic level alongside meat-eating carnivores. Omnivores are a diverse group of animals. Examples of omnivores include bears, birds, dogs, raccoons, foxes, certain insects, and even humans.