The esophagus undergoes peristalsis and the muscular movements force the bolus to the stomach, even against the force of gravity.
<h3>Which is not an involuntary part of the swallowing reflex?</h3>
The tongue rolls chewed food into a bolus and pushes it to the oropharynx. larynx.
Thus, The esophagus undergoes peristalsis and the muscular movements force the bolus to the stomach.
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Answer:
Prokaryotes lack an organized nucleus and other membrane-bound organelles.
Explanation:
Prokaryotic DNA is found in a central part of the cell called the nucleoid. The cell wall of the prokaryote acts as an extra layer of protection that helps maintain cell shape and prevents dehydration
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H20 is not a product of combustion
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