Food Chain and Food Web

What would most likely occur if a food chain were deprived of sunlight?

• The animals would rely on plants for energy.

• The food chain would thrive because of increased energy flow.

• The food chain would fail to thrive because of decreased energy flow.

• The plants would rely on animals for energy.

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

NGSS.MS-LS2-4

Which organisms in a food web are using carbon dioxide released by consumers?

• decomposers and other consumers

• producers

• producers and other consumers

• decomposers

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

What does a food web represent?

• the methods consumers use to get food

• the specific ways that mutualism occurs

• a single pathway of energy flow between organisms

• energy flow through organisms connected within an ecosystem

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

This shows a food chain.

sun → wheat → mouse → snake → owl

Which population of organisms has the most available energy in this food

chain?

• wheat

• mouse

• snake

• owl

Tags

NGSS.MS-LS2-3

Which energy source begins each food chain?

• fire

• soil

• wind

• sunlight

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

This is a food chain in a grasslands ecosystem.

sun → grass → rabbit → fox → hawk

Additional foxes are introduced into this ecosystem. Which population will immediately decrease?

• grass population

• rabbit population

• fox population

• native fox population

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NGSS.MS-LS2-4

NGSS.MS-LS2-1

What role do consumers perform related to energy flow within an ecosystem?

• Consumers take in energy when they eat other organisms.

• Consumers block energy taken in directly from the sun.

• Consumers allow decomposers to use energy from food to survive.

• Consumers release energy so that producers can make food.

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NGSS.MS-LS2-3

Which phrase best explains what the arrows in a food web indicate?

• chemical reactions within organisms

• direction of food movement

• flow of energy

• production of food

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NGSS.MS-LS2-3

NGSS.MS-LS2-2

A bear in a forest ecosystem eats both berries and fish. Which statement best describes how the bear is involved in energy transfer within this ecosystem?

• The bear releases energy that is transferred to the fish when the bear catches them.

• The berries produce energy that is transferred to the bear when he eats them.

• The bear releases energy as it is transferred to the berries and the fish.

• The bear produces energy and transfers it to the berries and the fish.

Tags

NGSS.MS-LS2-3

What does a food chain represent?

• the flow of energy within an ecosystem

• how energy is used within an ecosystem

• all the foods that a particular animal eats

• how plants create food through photosynthesis

Tags

NGSS.MS-LS2-3