Bidder’s canal is found in

In eggs which have very thick and resistant membrane e.g., fishes and insects sperm penetrate through a special canal called

Ducts leading from the testes of rabbit are called

In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was

$A$ : All copulations do not lead to fertilisation and pregnancy.
$R$ : Fertilisation can occur if the ovum and sperms are transported simultaneously to the ampullary-isthmic junction

Urinary bladder of the embryo is or Which is the urinary bladder of child placed in the womb