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:
Direct
Explanation:
There are two types of ossification, direct (intramembranous) or indirect (endochondral). The first originates the skull and face bones; the second occurs in most bones.
<span>Germination takes place when the conditions become favorable for a dormant seed. These conditions include availability of water, nutrition, sunlight as well as temperature. Dormancy prevent germiation in unfavorable conditions. Hard seed coats, impermeability, and immature embryo may also cause dormancy. </span>
DNA is the instructions for making cells proteins
Water moves slowly toward lower lying places and eventually is discharged from the aquifer. It’s between layers of rock
