A tube carrying sperms out of testicles is __________.

Gamete producing organ is __________.

The time during which foetus develops in the womb is _________.

Testes secrete male sex hormone called __________.

The common tube carrying urine and sperms is __________.

The flow of blood in females in every cycle is ________.

The advanced stage of embryo is __________.   

Male gametes are formed in the _________.   

The stage of attaining sexual maturity is _________.

Hydra reproduces through ________.