Urinary bladder of the embryo is or Which is the urinary bladder of child placed in the womb
Yolk sac
Allantois
Amnion
Chorion and allantois both
Formation of notochord or the central axial chord in vertebrates is known as
Neoteny refers to
In rabbit, the uterus is
During pregnancy which one of the following is excreted?
The longest gestation period is found in