Synchroniser switch is in the "on" position.
The hormone calcitonin, which is produced by the parafollicular or C cells of the thyroid, has the opposite effect on blood calcium levels as does PTH. I hope this helps! : )
C is the answer I just check it on mine
The pituitary gland secretes follicle stimulating hormone, which acts on the follicles and stimulates them to produce progesterone.
The answer is: [D]: "ammonia" .
________________________________________________
