(a) The onset of the reproductive phase in a female.
(b) Rupture of follicle and release of ovum from the ovary.
(c) Monthly discharge of blood and disintegrated tissues in human female.
(d) Process of fusion of ovum and sperm.
(e) Fixing of developing zygote (blastocyst) on the uterine wall.
Solution:-
(a) Menarche
(b) Ovulation
(c) Menstruation
(d) Fertilization
(e) Implantation