Exploring Ecosystems and Their Roles

What is a habitat?

• The place where an organism lives

• The food an animal eats

• The process of making food

• The way animals move

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Which of the following is a producer in an ecosystem?

• Lion

• Grass

• Mushroom

• Eagle

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What do decomposers do in an ecosystem?

• Make their own food

• Eat only plants

• Break down dead plants and animals

• Hunt for food

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Which term describes an animal that eats other animals?

• Producer

• Consumer

• Decomposer

• Habitat

What is a niche?

• The role an organism plays in its environment

• The place where an organism lives

• The food an organism eats

• The size of an organism

Which of the following best describes the relationship between producers and consumers in an ecosystem?

• Producers eat consumers

• Consumers make their own food

• Consumers eat producers for energy

• Producers break down dead matter

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If all the decomposers in an ecosystem disappeared, what would most likely happen?

• Plants would grow faster

• Dead plants and animals would pile up

• There would be more food for consumers

• Producers would become consumers

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A rabbit eats grass, and a fox eats the rabbit. Which organism is the consumer in this food chain?

• Grass

• Rabbit

• Fox

• Both rabbit and fox

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Why is it important for each organism to have its own niche in an ecosystem?

• So they can all live in the same place

• To avoid competition and help the ecosystem stay balanced

• To make more food for decomposers

• So they can all eat the same food

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Which of the following is an example of a habitat?

• A bird building a nest in a tree

• A fish swimming in a pond

• A lion hunting in the grasslands

• All of the above