The digestive system helps the body maintains homeostasis by supplying the organelles with... A. waste products and fat
B. Water and energy
C. toxins and enzymes
D. Oxygen and water

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.