Answer:
Once you begin swallowing, the process becomes automatic. Your brain signals the muscles of the esophagus and peristalsis begins. Lower esophageal sphincter. When food reaches the end of your esophagus, a ringlike muscle—called the lower esophageal sphincter —relaxes and lets food pass into your stomach.
Answer:
Option no. c correctly describes the relationship between tissues and organs.
Hope it helps you
B
(random words to reach 20 characters)
<h2>Answer</h2>
The one cell that develops when two gametes fuse during fertilization is the beginning of a new person. This one cell is known as a(n) <u>Zygote</u><u>.</u>
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