Just need help answering these questions. The first one is asking (According to this picture of embryos (early developmental stages), which two organisms are most closely related?)

it restores trees to areas where they once grew.

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 : )