Answer:
Variations are caused by mutation. random mating between organisms.
Explanation:
The best way for the nurse to help alleviate the back pain to a woman whose fetus in the occiput posterior position which is experiencing increase pain is to apply counter pressure to the back. These counter pressure help the woman to cope back labor associated with occiput posterior position
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passive refilling of the heart occurs During ventricular systole, the blood pressure
