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Lemur [1.5K]
3 years ago
13

What skill is a scientist using when she listens to the sounds that whales make

Biology
2 answers:
n200080 [17]3 years ago
8 0
They are using echolocation
aliya0001 [1]3 years ago
6 0
It is called echoloction
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A control group is sort of the normal group. The group you aren't changing or messing with. It is to show what the species/experiment acts like on its own in response to something without you having to change it at all. 

With an experimental group, you are changing something about the subject before putting it in the conditions it will need to respond to. 

I don't entirely understand, but I know the control group is constant, unchanging. It sort of helps with distinguishing things. I have examples of experiments if that will help you understand what a control group is to answer the question. I also have a The Death Cure example if you have seen or read the book. I hope you do not fail this assignment, but even if I did not answer with an answer you were looking for, it could have helped you answer the question on your own. 

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