NGSS.MS-LS2-3

What is the term for each step in the transfer of energy and matter within a biological community?

• energy path
• food web
• trophic level
• food pyramid

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NGSS.MS-LS2-3

The amount of energy that usually transfers from one trophic level to the next...

• 10%
• 20%
• 80%
• 50%

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NGSS.MS-LS2-3

In the energy pyramid below, which organism has the least amount of energy available?

• Producers
• Herbivores
• Carnivores
• Top Predator

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NGSS.MS-LS2-3

In the energy pyramid here, which organisms have the most energy available?

• Producers
• Carnivores
• Herbivores
• Top Predator

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NGSS.MS-LS2-3

When dead plants decompose and nitrogen is returned to the soil, the interaction is between which two spheres? 

• The biosphere and atmosphere 
• The atmosphere and geosphere 
• The geosphere and atmosphere 
• The biosphere and geosphere 

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NGSS.MS-LS2-3

Bacteria "fix" nitrogen. What does this mean?

• Bacteria take nitrogen out of the ecosystem completely.
• Bacteria convert nitrogen into a toxic form.
• Bacteria convert nitrogen into water.
• Bacteria convert nitrogen into a form that other organisms can use.

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NGSS.MS-LS2-3

How much energy is available to be passed on to the next trophic level in an ecosystem?

• 100%
• 10%
• 50%
• 75%

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NGSS.MS-LS2-3

Which organism recieves the least amount of energy from the producer?

• Owl
• Grasshopper
• Lilypad
• Mouse

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NGSS.MS-LS2-3

What does an ecosystem consist of?

• all of the biotic organisms

• all of the abiotic organisms

• all of the biotic and abiotic things

• only biotic organisms

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NGSS.MS-LS2-3

What is a food chain?

• The flow of energy from one thing to another

• The way animals eat each other

• The way the sun makes everything

• How the plants grow

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NGSS.MS-LS2-3