Unit 4 lesson 2What are food chains?

The picture below shows a food chain.

Which part of the food chain is missing?

• A. carnivore

• B. consumer

• C. herbivore

• D. producer

Food chains have three types of consumers. Which statement describes an herbivore?

• A. eats only plants

• B. eats only animals

• C. makes its own food

• D. eats plants and animals

The pictures below show some animals you might find in grassland food chains. Which animal is the carnivore?

• A. 1

• B. 2

• C. 3

• D. 4

In a swamp, rabbits eat marsh grass. Bobcats eat rabbits. How are the rabbits and bobcats interacting?

• A. Rabbits are prey and bobcats are predators.

• B. Rabbits are herbivores and bobcats are prey.

• C. Rabbits are consumers and bobcats are producers.

• D. Rabbits are carnivores and bobcats are herbivores.

Iguanas are lizards that eat plants and insects. What type of consumer is an iguana?

• A. carnivore

• B. herbivore

• C. omnivore

• D. producer

In a forest, deer eat plants. Snakes eat small animals and birds. Raccoons eat mice, insects, fruits, and plants. What is the raccoon?

• A. carnivore

• B. herbivore

• C. omnivore

• D. producer

In a desert food chain, wild pigs called peccaries eat cacti. Then coyotes eat peccaries. In a forest food chain, deer eat plants. Then wolves eat deer. How does energy move in both of these food chains?

• A. from producers to consumers

• B. from consumers to producers

• C. from scavengers to herbivores

• D. from consumers to consumers

In a grassland food chain, grasshoppers eat grass. Then meerkats eat grasshoppers. What is the main role of the grasshopper in this food chain?

• A. make a new habitat

• B. be a source of energy

• C. clear grass for space to live

• D. lay eggs to make more grasshoppers

People are part of food chains. What is the role of people in a food chain?

• A. carnivore

• B. consumer

• C. herbivore

• D. producer

Explain the relationships among herbivores, carnivores, and omnivores.