AP BIOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -Producers can make their own food and energy, but consumers are different. Living things that have to hunt, gather and eat their food are called consumers. Consumers have to eat to gain energy or they will die. There are four types of consumers: omnivores, carnivores, herbivores and decomposers.

Detailed explanation-3: -Answer and Explanation: Some consumers get their energy by eating producers. These are called primary consumers. Other consumers, called secondary consumers, get their energy by eating primary consumers.

Detailed explanation-4: -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-5: -Consumers perform cellular respiration in order to get the energy they need for metabolic activities. Cellular respiration is the process in which glucose and oxygen are converted into energy, carbon dioxide, and water.