20. Smooth muscle:

a. Is found only in the heart

b. Is the body's most abundant tissue, comprising about 23% of a woman's body weight and about 40% of a man's body weight

c. Surrounds, or is part of, the internal organs

d. Is an involuntary muscle

e. Both c and d



Answer :

Final answer:

Smooth muscle tissue is found in internal organs and vessels and is responsible for involuntary contractions.


Explanation:

Smooth muscle tissue is found in the walls of internal organs and vessels. It is responsible for involuntary contractions and is controlled by the autonomic nervous system. Smooth muscle is found in hollow organs like the intestines, stomach, and blood vessels.


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