What changes are observed in the uterus:
(i) Subsequent to the implantation of the zygote and
(ii) If an egg does not get fertilized?
Name the part performing the following functions in the human female reproductive system:
(i) Production of eggs
(ii) Site of fertilization
(iii) Site of implantation
(iv) Entry of the sperms
List any three techniques of contraception used by humans. Which one of these is not meant for males?
Why are testes in human males located outside the abdominal cavity in scrotum?
Define Puberty. List any two changes seen in boys at the time of puberty.