Some diuretics cause the excretion of _____, increasing dietary need for this mineral.
a. iron
b. potassium
c. sodium
d. calcium
Question 2
Which statement is true?
a. Water helps to transport many substances in the body.
b. The majority of the body's water is found in the blood vessels.
c. The bones and teeth contain almost no water.
d. Water does not flow freely across cell membranes.