Question

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

carbon dioxide

carbon sink

carbon source

carbon flux

2. Bacteria add carbon to the carbon cycle by

being consumed by larger organisms, such as plankton.


decomposing dead organisms.


exchanging carbon dioxide and oxygen gases.


performing photosynthesis.

3. Breathing is related to the carbon cycle because(1 point)

only animals release carbon dioxide as a waste product.

it produces energy.

organisms exhale carbon dioxide.

it converts glucose and oxygen to water and carbon dioxide.

4. Which of the following is a carbon sink in the desert?(1 point)

cacti

snakes

plankton

insects

5. Where does cellular respiration occur?(1 point)

bacteria

lungs

chlorophyll

mitochondria

Answer 1

Answer:

1) (b)

2) (d)

3) (c)

4) (a)

5) (d)

Explanation:

1) (b) carbon sink

2) (d) performing photosynthesis.

3) (c) organisms exhale carbon dioxide.

4) (a) cacti

5) (d) mitochondria

Answer 2

• The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as carbon sink for the carbon cycle.

• Bacteria add carbon to the carbon cycle by decomposing dead organisms

• Breathing is related to the carbon cycle because organisms exhale carbon dioxide.

• Cacti is a carbon sink in the desert. This is because it is  a plant and manufactures food(carbon compounds) through photosynthesis.

• Mitochondria is the organelle where cellular respiration occur. This is why it is regarded as the power house of the cell.

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