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Doss [256]
2 years ago
11

Which of these changes take place during labor?

Biology
1 answer:
Volgvan2 years ago
5 0

Answer:

The answer is rhythmic contraction of the uterus wall.

Explanation:

this is because when muscle is overly used, it brings about contraction

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This implies, in the experiment presented Group A is the control group as they do not have special treatment because they sleep normally and Group B is the experimental group as the researcher modifies their sleep time and reduces it two hours which means in this group there is a treatment or intervention.

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