AP BIOLOGY

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ECOLOGY

ENERGY FLOW AND THE FOOD CHAIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Plants are called producers. This is because they produce their own food. They do this using photosynthesis. Producers are the largest part of any food chain. They are also at the bottom.Animals are consumers. They do not make their own food. They need to eat plants or animals to live. Consumers are divided into three different groups, depending on what they eat. An herbivore is an animal that only eats plants. Chipmunks, deer and butterflies are herbivores. A carnivore is an animal that only eats other animals. Tigers, wolves and spiders are carnivores. An omnivore is an animal that eats both plants and other animals. Both bears and people are omnivores.In the food chain, all animals are
A
decomposers.
B
omnivores.
C
consumers.
D
producers.
Explanation: 

Detailed explanation-1: -Producers, also known as autotrophs, make their own food. They make up the first level of every food chain. Autotrophs are usually plants or one-celled organisms. Nearly all autotrophs use a process called photosynthesis to create “food” (a nutrient called glucose) from sunlight, carbon dioxide, and water.

Detailed explanation-2: -Since, plants produce food for themselves, they are known as producers.

Detailed explanation-3: -How Do Producers Help in the Food Chain? All energy pyramids, food chains, and food webs are based on producers. These organisms provide energy for all other trophic levels that come above them. These trophic levels consist of organisms called consumers that consume (eat) other organisms for energy.

Detailed explanation-4: -The food chain is a linear sequence of organisms where nutrients and energy is transferred from one organism to the other. This occurs when one organism consumes another organism. It begins with the producer organism, follows the chain and ends with the decomposer organism.

Detailed explanation-5: -Producers. 1. Organisms that produce their own food from simple inorganic substances such as water, sunlight and carbon dioxide are called producers. 2. Examples are green plants and blue-green algae.

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