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Dahasolnce [82]
3 years ago
5

Can you guys answer this question please. Will give brainliest and a lot of points.

Biology
2 answers:
stepladder [879]3 years ago
7 0
For making sure the results were real
PtichkaEL [24]3 years ago
4 0

Answer:

Because they had to make sure the results were consistent.

Explanation:

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