Question

what is the effect of calcitonin? (1) decreases amount of free calcium in the bloodstream (2) decreases activity of osteoclasts which allows osteoblasts to out - pace (3) causes calcium to be deposited in the bone. (4) all of these choices are correct. 1 point

Explanation:

Calcitonin is a hormone that lowers blood - calcium levels. It does this by decreasing the activity of osteoclasts (which break down bone and release calcium into the blood), allowing osteoblasts (which build bone) to out - pace osteoclasts, and promoting calcium deposition in bone, thus decreasing the amount of free calcium in the bloodstream.

Answer:

All of these choices are correct.