Arthropods, like spiders and lobster, don't have blood like mammals do; instead, they have
hemoglobin
hematoma
lymph
hemolymph

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 it is c: genes for body color and wing size are inherited separately from each parent.