AP BIOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are all examples of heterotrophs. Heterotrophs occupy the second and third levels in a food chain, a sequence of organisms that provide energy and nutrients for other organisms.

Detailed explanation-3: -The organisms that eat the producers are the primary consumers. They tend to be small in size and there are many of them. The primary consumers are herbivores (vegetarians). The organisms that eat the primary consumers are meat eaters (carnivores) and are called the secondary consumers.

Detailed explanation-4: -The organisms that eat the primary producers are called primary consumers. Primary consumers are usually herbivores (plant-eaters), though they may be algae or bacteria eaters. The organisms that eat the primary consumers are called secondary consumers. Secondary consumers are generally meat-eaters (carnivores).

Detailed explanation-5: -Answer and Explanation: Organisms that obtain their energy from producers or other consumers are heterotrophs. This group of living beings consumes other organisms as food: they feed on primary producers and / or consumers to satisfy their metabolic needs.