G3 unit 4 lesson 3 What Is a Food Chain?

Plants play an important part in communities of living things. What is the role of plants?

• They are producers.

• B. They are herbivores.

• C. They are carnivores.

• D. They are consumers.

Some living things, such as rabbits, eat only plants. What is the name for living things that eat only plants?

• A. carnivores

• B. consumers

• C. herbivores

• D. producers

In a food chain, there are producers, consumers, and decomposers. What is the role of a producer in a food chain?

• A. to eat plants

• B. to make food

• C. to eat other living things

• D. to break down dead things

A bird kills and eats an insect for food and energy. Which best describes the bird?

• A. It is a predator.

• B. It is a producer.

  .

• C. It is a herbivore.

• D. It performs photosynthesis

Mr. Sullivan drew this picture on the board. The tree takes in carbon dioxide and gives off oxygen.

What is the name of this process shown in the picture?

• A. food chain

• B. decomposing

• C. photosynthesis

• D. producing

A food chain, like this one, shows how energy moves between living things.

Which living thing best completes the partial food chain above?

• bird

• B. plant

• C. carnivore

• D. herbivore

A food chain shows how living things depend on other living things for energy. Which of the following correctly shows how energy moves through a food chain?

• A. grass --> oak tree --> human

• B. grass --> chicken --> human

• C. human --> chicken --> grass

• D. chicken --> grass --> human

The food chain shown below is missing a living thing.

What kind of living thing should go in the missing space to complete the food chain?

• A. a producer

• B. a carnivore

• C. an herbivore

• D. a vegetable, such as carrots

Cows are consumers. They eat grass, grains, and hay. What do they get from their

• food?

  A. energy

• B. milk

• C. sunlight

• D. water

A food chain shows the flow of energy among living things. What is the original source of the energy in most living things?

• A. oxygen

• B. sugar

• C. sunlight

• D. water