A homeostatic imbalance that activates these bone cells would lead to a loss of bone density.
a. osteoblasts
b. osteoclasts
c. osteocytes
d. chondroblasts

B. osteoclasts

Explanation:

Osteoclasts counters the functions of the osteoblasts. Osteoblasts help

In bone formation while the osteoclasts when activated triggers the production of digestive enzymes which dissolved the bones and reduces its density.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.