Where do sperm and egg leave the body of a frog?

The sperms exit testes through ureter which is a common urinogenital duct: ureter delivers sperms in cloaca. In female frogs, ovaries shed the mature eggs in coelomic cavity. Eggs enter oviducal funnel to reach oviduct.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: