Transfer of Energy - Unit 3B

Energy is able to travel from the sun to Earth by

• sound and light

• light and heat

• hydrogen and oxygen

• oxygen and carbon dioxide

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A plant uses sunlight, oxygen and glucose to release carbon dioxide and water in order to make food.

• True

• False

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During cellular respiration, plants release

• carbon dioxide and water

• oxygen and water

• oxygen and sugar

• carbon dioxide and sugar

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___ builds up molecules to help cells multiply and stay in good condition.

• Anabolic Reaction

• Catabolic Reaction

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____ is when complex molecules are broken down and energy is released.

• Anabolic Reaction

• Catabolic Reaction

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What is the purpose of a decomposer in an ecosystem?

• They produce their own food.

• They are the original source of energy in a food chain.

• They put nutrients back in the soil.

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What is not an example of a primary consumer?

• zebra

• elephant

• lion

• mouse

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What is a secondary consumer?

• It is an animal that eats only plants.

• It is an animal that eats other animals for energy.

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What is an example of a producer?

• flowers

• bacteria

• otter

• butterfly

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What is an example of a primary consumer?

• flowers

• bacteria

• otter

• butterfly