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notka56 [123]
4 years ago
11

What is true of mass extinctions?

Biology
2 answers:
LUCKY_DIMON [66]4 years ago
6 0

Answer:

b

Explanation:

mostly 99% of all species die

vodomira [7]4 years ago
4 0

Answer: I think the answer is B

Explanation:

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Crossing over between segments of homologous chromosomes.

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Crossing over happens during prophase I of meiosis I

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To replace burned skin, doctors can successfully transplant replacement skin taken from another part of the body of the burn vic
SashulF [63]

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Option (2).

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Hope i helped! Please mark Brainliest if u can :)
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