Crustaceans are well adapted to life on the rocky shore because they have?

a) soft shells
b) internal skeletons
c) camouflaged color patterns
d) holdfasts

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 : )

not too sure but maybe in the hot springs.