About twelve to twenty-four hours after the previous
meal, a person’s blood-sugar level normally varies
from 60 to 90 milligrams per 100 milliliters of blood,
though it may rise to 130 mg/100 ml after meals high
in carbohydrates. That the blood-sugar level is
maintained within a fairly narrow range despite
uneven intake of sugar is due to the body’s ability to
carry out
a. adaptation.
b. inheritance.
c. metabolism.
d. homeostasis.
e. all of these.
Answer: d
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