Answer. C the answer would be peristalsis because it acts as is a series of wave like muscle contractions.
Talk to your counselor about it at school. If your mom hurts you, tell your counselor. They can do things to help you and it would be good for you to tell someone about whats going on.
Answer:
Oxygen is a chemical element that constitutes 21 percent of the Earth's atmosphere, that is capable of combining with all elements except some noble gases, that is active in physiological processes of almost all known organisms, and that is involved especially in combustion — see Chemical Elements Table.
Explanation:
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