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ratelena [41]
3 years ago
12

NEED HELP ASAP

Biology
1 answer:
Amiraneli [1.4K]3 years ago
5 0

Answer:

B. because it works for both ways and uses nothing

Explanation:

It has no sense to the problem

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In hemoglobin, the transition from t state to r state (low to high affinity) is triggered by Bisphosphoglycerate (BPG)

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Learn more about  Bisphosphoglycerate (BPG) from here:brainly.com/question/8885734

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The bottom one shows how the circulatory system of a fish functions.

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