Trophic Pyramid

In this food pyramid, which level has the greatest amount of energy?

• Producers

• Primary Consumers

• Secondary Consumers

• Tertiary Consumers

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

How much energy is passed from one trophic level to the next?

• 1%

• 10%

• 50%

• 100%

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NGSS.MS-LS2-3

What happens to the energy that is not passed on to the next level?

• 80-90 percent is used by each member of the chain for life processes

• 80-90 percent may be lost to heat or waste products

• 80-90 percent may be eaten 

• A and B both

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

each level of the food chain is called a ________ level.

• Food-eating

• Trophic

• Sunlight

• Energy

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NGSS.MS-LS2-3

In a trophic pyramid, which level contains the most energy?

• Tertiary consumers

• Secondary consumers

• Primary consumers

• Producers

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NGSS.MS-LS2-3

How does the concept of a trophic pyramid help in understanding energy flow in an ecosystem?

• It shows that energy is evenly distributed among all trophic levels.

• It illustrates that energy decreases as it moves up the trophic levels.

• It indicates that energy increases as it moves up the trophic levels.

• It demonstrates that energy is only present at the producer level.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following best explains why energy decreases at each successive trophic level in a food chain?

• Energy is destroyed as it moves up the trophic levels.

• Energy is lost as heat due to metabolic processes.

• Energy is converted into matter at higher trophic levels.

• Energy is stored indefinitely at each level.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Predict the consequences of a decrease in producer population on the trophic pyramid.

• The entire pyramid would collapse due to lack of energy.

• The number of decomposers would increase.

• The biomass of primary consumers would increase.

• The energy flow would remain unchanged.

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NGSS.MS-LS2-1

NGSS.MS-LS2-3

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Which of the following best describes a trophic pyramid?

• A diagram showing the number of organisms at each trophic level

• A chart of the energy flow in an ecosystem

• A representation of the biomass at each trophic level

• A list of all species in an ecosystem

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NGSS.MS-LS2-3

Identify the role of producers in the trophic pyramid.

• They decompose organic matter.

• They convert solar energy into chemical energy through photosynthesis.

• They consume other organisms for energy.

• They store energy in the form of fat.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3