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elena55 [62]
3 years ago
14

How do some protozoans respond to adverse environmental conditions ?

Biology
1 answer:
blsea [12.9K]3 years ago
8 0
<span>"they form a cyst: a hard covering is formed around the protozoan and metabolic rate is slowed"</span>
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Answer:

Option A, most closely related to mammals

Explanation:

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In 1941, ______ was the first used successfully to treat an infection caused by a bacterium.
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4 years ago
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↑   ↑   ↑  Hope this helps! :D

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8 0
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