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topjm [15]
3 years ago
13

What is the difference between cross-sectional and longitudinal research?

Biology
2 answers:
Oksi-84 [34.3K]3 years ago
7 0
I think the answer is either B or C, hope this helps! Sorry if it doesn't!
Marina86 [1]3 years ago
5 0
I belive it is b hopefully this helped
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Then, after a mutation, the DNA isn’t exactly identical because of this mistake in the DNA after copied.

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Explanation:

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