Secondary hypertension . Select all that apply. has no known cause. is a blood pressure < 120/80 mm Hg. has no negative effect on the heart. is also known as essential hypertension. accounts for 5- to 10-percent of all hypertension cases.

What are the two main phases of a cell cycle

Isolated volcanic peaks on the ocean floor are

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?