Matter and Energy in Ecosystems

Which of the following is NOT an example of biotic matter?

• animals

• plants

• bacteria

• sunlight

Which of the following are considered biotic matter? Check ALL that apply.

• Living organisms

• Dead organisms

• Nonliving parts of an ecosystem (ex: air, water, rocks)

Which time shows the chloroplasts in the plant AFTER photosynthesis?

• Time 1

• Time 2

Tags

NGSS.MS-LS1-6

What are energy storage molecules mostly made of?

• oxygen

• carbon

• hydrogen

• helium

Answer explanation

Tags

NGSS.MS-PS1-1

When there is more carbon (in the form of carbon dioxide) in abiotic matter...

• more carbon is available to producers for making energy storage molecules.

• less carbon is available to producers for making energy storage molecules.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

When there is less sunlight...

• producers make more energy storage molecules from the carbon in carbon dioxide.

• producers make less energy storage molecules from the carbon in carbon dioxide.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What is a producer?

• organism that cannot make their own food so they eat other organisms

• organism that makes their own food

• organism that break down dead organisms

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What is a decomposer?

• an organism that breaks down dead organisms for energy

• an organism that makes its own food

• an organism that eats other organisms

Tags

NGSS.MS-LS2-3

Does a food chain start with the sun?

• yes

• no

What is a consumer?

• an organism that breaks down dead organisms

• an organism that makes its own energy and food

• an organism that eats other organisms for energy

Tags

NGSS.MS-LS2-3