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loris [4]
3 years ago
13

Help me hellllllllp 20 points

Biology
1 answer:
Firdavs [7]3 years ago
7 0

B. the reason why scientists do he experiment more than once is because they have to compare the first attempt and the second attempt . Because if they are different they have to figure out what id the different or aka what is different. hope this helps ;)

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