The purpose of cilia in pseudostratified columnar epithelial tissue?Immersive Reader

its protects the lungs from irritants

Explanation:

this is because the goblet cells of the epithelium secretes mucus which traps particles and prevents them from going further down

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 : )