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andreyandreev [35.5K]
2 years ago
13

Read the following summary, which describes blood flow and heart output in space. Then, answer the question.

Biology
1 answer:
Darina [25.2K]2 years ago
7 0

Explanation:

respiration because it's about blood circulation

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In which scenario could natural selection most obviously occur?
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Answer:

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3 years ago
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