Unit 4 Energy and Matter in Ecosystem

An organism that makes its own food through photosynthesis is called...

• Consumer
• Producer
• Heterotroph
• Decomposer

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NGSS.MS-LS1-6

Organisms that recycle nutrients and feed on dead/decaying plants and animals

• Producer
• Autotroph
• Decomposer
• Predator 

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NGSS.MS-LS2-3

How much energy is passed from one trophic level to the next?

• 10%
• 50%
• 90%
• 100%

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NGSS.MS-LS2-3

Which organism in this food chain would have the most energy?

• Grass
• Grasshopper
• Frog
• Python

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is photosynthesis?

• how fungi obtain energy
• The process in which green plants use oxygen to make carbon dioxide 
• the process in which green plants use carbon dioxide to make oxygen
• the process of absorbing energy by touching things 

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NGSS.MS-LS1-6

What is the source of all energy? 

• producers
• sun
• consumers
• decomposers

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is the best example of a decomposer?

• vulture
• bacteria
• algae
• rat

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NGSS.MS-LS2-3

Interconnected food chains are called

• food cycles
• energy pyramids
• trophic levels
• food webs

A food chain shows how _____ moves through an ecosystem

• matter
• food
• energy
• atoms

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

This diagram is an 

• food chain
• food web
• energy pyramid
• energy cycle

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NGSS.MS-LS2-3