Answer:
Lipid molecules
Explanation:
The molecules that prevent cell membranes from dissolving are called lipid molecules most abundantly known as phospholipids.
Chromosems is the right answer
The answers are;
The muscular contractions are wave-like
The muscular contractions are entirely involuntary
This action is called peristalsis.
It is powered by the expansion and contraction of the smooth muscles present in the esophagus. It is controlled by the sympathetic activity of the autonomic nervous system hence
the movements are involuntary.
Hold on please wait let me search
