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Aleks [24]
3 years ago
15

Points give a answer

Biology
2 answers:
DIA [1.3K]3 years ago
8 0
I believe it’s A but I’m not sure bc the page cut out
stiks02 [169]3 years ago
6 0

Answer:idk

Explanation:

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Humans have 23 pairs of chromosome in every body cell. Even one extra chromosome causes death or serious disorders. For example,
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In the majority of cases, the extra copy of chromosome 21 comes from the mother in the egg.

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Plant life first appeared on land during which of the following periods?
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