13. Melissa's dog had a litter of puppies. She noticed that the puppies all had the same eye color and ear shape as the parents. These two traits are

A. altered
C. recessive
B. inherited
D. environmental

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.

thinking it would be d not too sure but i think it's right

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;