where are protons located ? A. Inside the nucleus of a cell B. In the cell membrane C. Inside the nucleus of an atom D. Outide the nucleus of an atom​

option c

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 : )

answer///multiple alleles;