Food Chains and Food Webs

The three trophic levels in a food chain are

• producer, consumer, decomposer

• flower, bee, mushroom

• neither describes the trophic levels

• both describe the trophic levels

Tags

NGSS.MS-LS2-3

In the food web shown, who is the secondary consumer?

• grass

• mouse

• rabbit

• fox

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NGSS.MS-LS2-2

NGSS.MS-LS2-3

For an energy pyramid, the 10% rule states that

• 10% of the energy is transferred from one organism to the next.

• 10% of the energy is gained.

• 10% of the animals will starve.

• 10% of the producers are eaten.

Tags

NGSS.MS-LS2-3

What does a primary consumer eat?

• tertiary consumers

• secondary consumers

• producers

• decomposers

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NGSS.MS-LS2-2

An organism that lives by breaking apart dead organic matter into simpler parts is...

• scavenger
• consumer
• decomposer
• carnivore

Tags

NGSS.MS-LS2-3

What does a food web represent?

• All connections of energy flow throughout all organisms in a ecosystem.
• The specific ways that mutualism is carried out.
• A single pathway or energy flow between organisms. 
• How carnivores get their food. 

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NGSS.MS-LS2-3

What is missing from this food chain?
Grass > Grasshopper > Bird > Snake

• Producer
• Primary Consumer
• Secondary Consumer
• Decomposer

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NGSS.5-LS2-1

The organism that hunts for food is a

• predator

• prey

• decomposer

• producer

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NGSS.MS-LS2-4

What level consumer is the deer?

• primary

• secondary

• tertiary

• producer

Tags

NGSS.MS-LS2-1

In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?

• 10%
• 20%
• 80%
• 90%

Tags

NGSS.MS-LS2-3