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Bumek [7]
3 years ago
15

PLEASE HELP HELP HELP

Biology
1 answer:
cestrela7 [59]3 years ago
6 0

Answer:

1st

Explanation:

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Krebs cycle and electron transport chain are important steps in cellular respiration.

In the Krebs cycle, there is a need of NAD+ molecule which is then in Krebs cycle reduced to form a NADH2 molecule.

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Parrotfish live in the ocean and eat plantlike organisms called algae. Sunlight is shining
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Carbon is moving into the living things, but not out. While algae conducts photosynthesis (which produces oxygen), it does not create carbon since oxygen has no carbon molecules. Since all living things are made of carbon (which the fish is consuming), and the plant also absorbs the carbon   of in the ocean to assist in photosynthesis, both are consuming carbon.

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