Peristalsis is a series of wave-like muscle contractions that moves food to different processing stations in the digestive tract. The process of peristalsis begins in the esophagus when a bolus of food is swallowed.
Answer:
advanced propulsion equipment
Answer:
c.
Explanation:
the only way to inherit sickle cell anemia is if both parents have one gene for sickle cell hemoglobin.(one sickle cell gene from mom and dad)
Shape is a characteristic use to group the three kinds of eubacteria.
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