1. which does not play a role in maintaining blood concentrations when calcium levels are low? a. parathyroid hormone increasing intestinal production of active vitamin d b. activated vitamin d decreasing kidney excretion of calcium c. activated vitamin d increasing intestinal absorption calcium d. parathyroid hormone increasing kidney production of active vitamin d e. activated vitamin d increasing release of calcium from the bone

The right answer is A.

Parathyroid hormone, also known as parathyroid hormone, is a hypercalcemic and hypophosphatemic peptide hormone secreted by the parathyroid glands.

It is rather correct to say that PTH (parathyroid hormone) increases kidney production of active vitamin D because it is where vitamin D is synthesized and not in the intestine.

parathyroid

Explanation:

a. life is life.

because life is not always nice.

and life is not always fun and cute.