AP BIOLOGY

Detailed explanation-1: -A heterotroph is an organism that eats other plants or animals for energy and nutrients. The term stems from the Greek words hetero for “other” and trophe for “nourishment.” Organisms are characterized into two broad categories based upon how they obtain their energy and nutrients: autotrophs and heterotrophs.

Detailed explanation-2: -Consumers constitute the upper trophic levels. Unlike producers, they cannot make their own food. To get energy, they eat plants or other animals, while some eat both. Scientists distinguish between several kinds of consumers.

Detailed explanation-3: -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: -An animal that eats producers, like plants or algae, is called an herbivore. Carnivores eat other consumers. This means they eat other animals. Animals that eat both producers and consumers are called omnivores.

Detailed explanation-5: -Answer and Explanation: Energy is passed from one organism to another when an organism consumes another organism, or when nutrients are absorbed. In terms of obtaining energy, there are three types of organisms: autotrophs, heterotrophs and decomposers.