The carry (carries) oxygen-rich blood between the lungs and heart. the carry (carries) oxygen-rich blood between the lungs and heart. bronchial arteries pulmonary arteries pulmonary veins pulmonary trunk

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///triple meter;