Biology

Living Things and the Carbon Cycle Quick Check:

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

carbon flux
carbon sink ***
carbon dioxide
carbon source

Where does cellular respiration occur?

lungs
bacteria
chlorophyll
mitochondria ***

Bacteria add carbon to the carbon cycle by:

decomposing dead organisms ***
exchanging carbon dioxide and oxygen gases.
being consumed by larger organisms, such as plankton.
performing photosynthesis.

Breathing is related to the carbon cycle because

only animals release carbon dioxide as a waste product
organisms exhale carbon dioxide ***
it converts glucose and oxygen to water and carbon dioxide
it produces energy.

Researchers determine the population of phytoplankton in an area of the ocean is significantly decreased compared to the previous year. What can they conclude from this observation?

The plankton as a carbon sink and as a carbon source in the area will be greater than expected.

The plankton as a carbon sink and as a carbon source in the area will be less than expected. ***

The plankton as a carbon sink will be greater than expected, but the plankton as a carbon source will be less than expected.

The plankton as a carbon sink will be less than expected, but the plankton as a carbon source will be greater than expected.

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  1. Took the quick check and it’s 100%

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  2. 100% on the quiz :) (as of January 2022)

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