science

The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as (a) _________ for the carbon cycle.

carbon flux

carbon dioxide

carbon source

carbon sink***

Bacteria add carbon to the carbon cycle by

decomposing dead organisms.***

being consumed by larger organisms, such as plankton.

performing photosynthesis.

exchanging carbon dioxide and oxygen gases.

Breathing is related to the carbon cycle because

it converts glucose and oxygen to water and carbon dioxide.

only animals release carbon dioxide as a waste product.

it produces energy.

organisms exhale carbon dioxide.***

Which of the following is a carbon sink in the desert?

snakes

insects

plankton

cacti***

Where does cellular respiration occur?

bacteria

chlorophyll

lungs

mitochondria***

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