Cycles, Food Web and Trophic Levels

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

• grass

• mouse

• rabbit

• fox

Tags

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.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

What does a primary consumer eat?

• tertiary consumers

• secondary consumers

• producers

• decomposers

Tags

NGSS.MS-LS2-3

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

• scavenger
• consumer
• decomposer
• carnivore

Tags

NGSS.MS-LS2-2

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-LS2-2

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.MS-LS2-2

NGSS.MS-LS2-3

In an ecological pyramid top carnivores are represented at the

• the base

• the tip

• in the middle

• all over the pyramid

First trophic level of a ecological pyramid includes

• producers

• primary consumers

• secondary consumers

• tertiary consumers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

what does an energy pyramid show?

• Energy flow in a community

• Longest lifespans

• The stronger animal higher it is on the pyramid

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NGSS.MS-LS2-3

A consumer gets energy by doing what?

• Making it themselves

• Breaking down biotic wastes and dead organisms and returning raw materials to the ecosystem

• Soaking it up from the ground

• Feeding on other organisms

Tags

NGSS.MS-LS2-3