Food Webs and Ecological Pyramids Z Quick Quiz 4

What happens to the amount of energy available to organisms when moving from trophic level 1 to trophic level 2?

• The energy decreases by approximately 90%

• The energy increases by approximately 90%

• The energy increases by approximately 10%

• The energy decreases by approximately 10%

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Which organism should be in the 1,000 J level?

• Grass

• Grasshopper

• Frog

• Raccoon

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Which organism should be in the 1 Joule portion?

• Raccoon

• Frog

• Small mouth bass

• Grass

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Which activity transfers energy from one trophic level to another in an ecosystem?

• A rabbit giving birth to a new little of baby rabbits

• A grasshopper eating a grass by a pond

• A snake shedding its skin

• A raccoon producing waste.

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Which organism has the most available energy

• Grass

• Deer

• Hawk

• Insect-eating bird

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In the picture, what organisms are considered decomposers? (check all that apply)

• Insect-eating Bird

• Bacteria

• Mountain Lion

• Snake

• Fungi

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Producers are found at the bottom of the pyramid because producers

• Provide energy for the consumers

• Have less mass than consumers

• Depend on consumers

• Have fewer species than consumers

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In an energy pyramid, the total energy available for consumption from one trophic level to the next one above it is:

• Reduced

• Conserved

• Multiplied

• Evenly distributed

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How is energy released by an organism? (This includes plants and animals.)

• It is used up by the animal and not released

• It is recycled by decomposers

• It is stored as biomass

• It is released into the ecosystem as heat.

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What would happen to the frog population is insecticide was used by the pond?

• Nothing, they wouldn't be affected

• It would grow in number

• It would decrease in number because the grasshopper population would be destroyed.

• It would die off because of the insecticide

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