1. True or false? The vasoconstrictor angiotensin II stimulates secretion of aldosterone, which stimulates the kidney to conserve sodium and water. 2. True or false? Though 90% of primary cardiac...

1. True or false? The vasoconstrictor angiotensin II stimulates secretion of aldosterone, which stimulates the kidney to conserve sodium and water.

2. True or false? Though 90% of primary cardiac tumors are benign, they are problematic due to their propensity to obstruct blood flow in the heart.