Answer/Explanation:
ERECTION : the state in which a body part (such as the penis) becomes firm and swollen because of sexual excitement also : the penis when it is in such a state. : the act or process of building or erecting something.
MENSTRUATION : the process in a woman of discharging blood and other materials from the lining of the uterus at intervals of about one lunar month from puberty until menopause, except during pregnancy.
NOCTURNAL EMISSION : an involuntary ejaculation of semen during sleep.
OVUM : a mature female reproductive cell, especially of a human or other animal, which can divide to give rise to an embryo usually only after fertilization by a male cell.
PUBERTY : the period during which adolescents reach sexual maturity and become capable of reproduction.
SPERM : A sperm is a cell which is produced in the sex organs of a male animal and can enter a female animal's egg and fertilize it. Conception occurs when a single sperm fuses with an egg.
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