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zlopas [31]
3 years ago
13

What is the purpose of the test tube rack cover? I

Spanish
2 answers:
BabaBlast [244]3 years ago
7 0

Answer:

It is used to change light levels for test tubes to see how the substance or organizim reacts, and to stop things from messing with your experiment. (And to keep dust off of your test tube rack.)

Nuetrik [128]3 years ago
6 0
Answer:

It’s to simulate dark conditions.
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