5th Grade Energy Flow in Ecosystems

Which of the following best describes the role of producers in an ecosystem?

• A) They consume other organisms for energy.

• B) They produce oxygen and food through photosynthesis.

• C) They break down dead materials.

• D) They are the primary consumers.

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What is the primary source of energy for most ecosystems on Earth?

• A) Wind

• B) The Sun

• C) Thermal vents

• D) Decomposers

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What are the main types of living things in an ecosystem?

• A) predators, composers, and decomposers

• B) apex predators, herbivores, and decomposers

• C) producers, consumers, and decomposers

• D) primary consumers, herbivores, and carnivores

True or False: A food web provides a more accurate representation of energy flow in an ecosystem than a food chain.

• True

• False

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Describe the difference between a food chain and a food web.

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Why are plants considered primary producers in most ecosystems?

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What would happen if you removed a species from an ecosystem?

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Draw and label an example of a food chain.

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Which of the following animals is an herbivore, meaning it only eats plants?

• A) Lion

• • B) Shark

• • C) Rabbit

• • D) Eagle

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Describe how one biotic factor and one abiotic factor can influence each other in a forest ecosystem. Give specific examples for both factors.

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