Energy Pyramid Quiz

What does an energy pyramid represent in an ecosystem?

• The recycling of nutrients

• The movement of water through living organisms

• The flow of energy from one trophic level to another

• The migration patterns of animals

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NGSS.MS-LS2-3

Which group of organisms is found at the base of an energy pyramid?

• Primary consumers

• Producers

• Secondary consumers

• Tertiary consumers

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NGSS.MS-LS2-3

According to the 10% rule, if a plant contains 500 calories of energy, how much energy is available to the primary consumer that eats it?

• 5 calories

• 50 calories

• 500 calories

• 50,000 calories

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NGSS.MS-LS2-3

Who are the primary consumers in an energy pyramid?

• Carnivores

• Omnivores

• Herbivores

• Decomposers

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NGSS.MS-LS2-3

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Which trophic level is directly above primary consumers in an energy pyramid?

• Producers

• Secondary consumers

• Tertiary consumers

• Decomposers

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NGSS.MS-LS2-3

Tertiary consumers are also known as:

• Apex predators

• Herbivores

• Omnivores

• Scavengers

What percentage of energy is typically transferred from secondary to tertiary consumers according to the 10% rule?

• 10%

• 25%

• 50%

• 75%

Tags

NGSS.MS-LS2-3

Which organisms break down dead material and recycle nutrients back into the ecosystem?

• Primary consumers

• Producers

• Decomposers

• Secondary consumers

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NGSS.MS-LS2-3

Why does an energy pyramid typically get narrower toward the top?

• There are more producers than consumers

• Energy transfer is inefficient between levels

• Tertiary consumers have fewer natural predators

• Primary consumers do not require much energy

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NGSS.MS-LS2-3

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What role do decomposers play in the energy pyramid?

• They synthesize their own food from sunlight

• They consume other living organisms

• They break down organic matter and release nutrients

• They help in the pollination of plants

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NGSS.MS-LS2-3