Parathyroid Hormone will ____ osteoblast and -_ osteoclast activity, which will cause bone density to _ _. increase, increase, decrease increase, increase, increase increase, decrease, decrease increase, decrease, increase decrease, increase, decrease decrease, increase, increase decrease, decrease, decrease O decrease, decrease, increase Question 22 (1 point) ) Listen Secondary ossification centers occur in the dermis of the skin. at the outer surface of the diaphysis. at the surface of the epiphyses. in the center of the epiphyses. O in the medullary cavity of the diaphysis