Flow of Energy in an Ecosystem

The rabbit in this food web would be considered a:

• Decomposer

• Producer

• Secondary Consumer

• Primary Consumer

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NGSS.MS-LS2-2

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Which level of a trophic pyramid would have the fewest number of organisms?

• primary consumers

• producers

• tertiary consumers

• secondary consumers

The diagram represents a pyramid of energy in an ecosystem.  Which level would most likely contain members of the plant kingdom?

• A

• B

• C

• D

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NGSS.MS-LS1-6

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How might a lack of sunlight disrupt the food web?

• It would cause consumers to consume less.

• It would prevent decomposers from decomposing matter.

• It would prevent producers from producing nutrients.

• It would not disrupt the food web at all.

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Which choice is the primary consumer in this food web?

• Dragon Fly

• King Fisher

• Freshwater Shrimp

• Trout

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NGSS.MS-LS2-3

How much energy is available to primary consumers?

• 1,000,000 Kc

• 1,000 Kc

• 100,000 Kc

• 100 Kc

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NGSS.MS-LS2-1

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How much energy is transferred to the trophic level above?

• 1%

• 10%

• 100%

• 1000%

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NGSS.MS-LS2-3

Which type of organism is always at the bottom of an energy model?

• autotroph

• heterotroph

• carnoivore

• herbivore

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Why do you find fewer organisms at higher trophic levels?

• Due to less energy

• Due to more energy

• Incorrect, there are far more species found at higher trophic levels compared to lower levels

• Global warming

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NGSS.MS-LS2-3

Why do organisms tend to be larger in size at higher trophic levels, but result in less biomass.

• Larger number of animals in higher trophic levels

• Fewer number of animals in higher trophic levels

• Due to the increase in temperature

• They are going extinct.

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NGSS.MS-LS2-3