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dybincka [34]
3 years ago
15

Why is it necessary for animals to have a circulatory system?

Biology
1 answer:
Elden [556K]3 years ago
6 0

Answer:

to breathe

Explanation:

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How do scientists separate the layers of the atmosphere
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A scientist is studying a biome that experiences large seasonal fluctuations in both temperature and precipitation patterns. Wha
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The correct answer will be option- Generalist species would be abundant in the biome.

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A science student makes the following statement. A raccoon may live longer when it eats only vegetables. What is the student doi
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Why would an organism behave in a way that reduces its individual fitness?
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