Well, right away I know that it is some sort of mutualistic relationship. Since this is not an option here, my best guesses are either <em>B or C.</em>
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Please let me know if I was right :)
Answer: peristalsis
Explanation:it's the contraction and relaxation of muscles as the bolus moves down the oesophagus
B is the correct answer because all the classes are hierarchy’s in a sense
Golgi body is all I would know for this but the proteins I don't know
