Food Webs and Energy Pyramids (Amoeba Sisters)

What is a producer in a food chain?

• A type of decomposer that breaks down dead matter

• A type of consumer that eats primary consumers

• An organism that can make its own food

• An organism that eats other organisms

What percentage of energy is transferred from one trophic level to the next?

• 10%

• 50%

• 75%

• 25%

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What happens if a primary consumer is removed from a food chain?

• Secondary consumers may not have enough to eat

• The ecosystem becomes more stable

• Producers will increase in number

• Decomposers become the dominant group

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What is biodiversity?

• A single food chain within an ecosystem

• The variety of organisms living in a given area

• The decrease of organisms in an ecosystem

• The process of decomposing organic matter

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NGSS.MS-LS2-5

What is the role of decomposers in an ecosystem?

• They produce their own food

• They are the primary consumers

• They eat live plants and animals

• They break down dead matter

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What is a food web?

• A graphical representation of producers only

• Multiple food chains that interact together

• A model showing only the primary consumers in an ecosystem

• A single chain of energy transfer in an ecosystem

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What is the difference between autotrophs and heterotrophs?

• There is no difference; they are the same

• Autotrophs make their own food, while heterotrophs consume other organisms

• Autotrophs and heterotrophs both consume other organisms

• Autotrophs consume other organisms, while heterotrophs make their own food

Why is it critical to protect ecosystem biodiversity?

• To focus solely on increasing the number of apex predators

• To increase the number of producers

• To ensure there are enough decomposers

• To maintain ecosystem resilience and sustainability

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NGSS.MS-LS2-5

What could be a consequence of removing an apex predator from a food chain?

• An increase in biodiversity

• An excessive population of its prey

• All other species would become decomposers

• A decrease in the number of primary consumers

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How does the energy content change as you move up trophic levels in an energy pyramid?

• It remains constant throughout the levels

• It decreases, with roughly 10% of energy stored at each level up

• It doubles at each level

• It increases by 10% at each level

Tags

NGSS.MS-LS2-3