Unit 3 Matter and Energy in Living Ecosystems

What do you call an organism that can make its own food?

• autotroph

• heterotroph

• primary consumer

• decomposer

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NGSS.MS-LS1-6

Which of the following are reactants of photosynthesis?

• glucose

• water

• carbon dioxide

• oxygen

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NGSS.MS-LS1-6

Which of the following are the PRODUCTS of photosynthesis?

• carbon dioxide

• water

• oxygen

• glucose

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

What do you call an organism that must consume other organisms for food?

• autotroph

• heterotroph

• producer

• phytoplankton

An organism's place on a food chain is also called its

• trophic level

• food chain level

• energy level

• biomass level

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NGSS.MS-LS2-3

Energy used by most living things on Earth comes from the process of photosynthesis.

• True

• False

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

The products of photosynthesis are the reactants of cellular respiration.

• True

• False

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NGSS.MS-LS1-6

The rabbits are on the _______ trophic level.

• 1st

• 2nd

• 3rd

• 4th

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NGSS.MS-LS2-3

Energy flows in a food chain as one organism consumes another for food. What happens to this energy as it moves up the food chain from one level to the next?

• It is stored in the organism as fat.

• It remains constant.

• It increases.

• It decreases.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is a producer in the food chain shown?

• hawk

• snake

• rabbit

• wildflowers

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NGSS.MS-LS1-6

NGSS.MS-LS2-3