Explain the change in the mass of the potato cylinder at a squash concentration
of 0%

is this a psat question, if so do not cheat try your best.

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 : )

i believe the answer is snake.