Pupa is otherwise knows as ______.            

When the fusion of sperm and egg takes place outside the body is ________ .

________is a series of changes that insect goes through in a life cycle.

Testes produce male sex cells called  _______.

Sperm duct is otherwise known as __________.

The muscular organ of man through which urethra passes ________ . 

Asexual reproduction in amoeba is ___________ . 

Oviduct is otherwise known as __________. 

The advanced stage of embryo is __________.   

A tube carrying sperms out of testicles is __________.