Will give brainliest to correct answer the movement of a plant's leaves to face the sun as it moves across the sky is an example of a. phototropism. b. solar tracking. c. heliotropism. d. nastic movements.

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 : )

occluded front i think