Answer:
A woman is born with all of her eggs, which are stored in her ovaries. The ovaries also make the hormones estrogen and progesterone, which control her period (menstruation) and the release of eggs (ovulation). Menopause happens when the ovaries no longer release an egg every month and menstruation stops.
There’s actually 100 but only 8 of them infect humans
Answer: Organelles, Cell, Proteins, Tissue, Organ, Organism.
Explanation: I hope this helps, I had this subject a month or so back and I still have my notes.
Used by people is the answer. :-)