Which cavity arises by the invagination of endoderm and mesoderm
Coelenteron
Archenteron
Pseudocoel
Coelom
Umbilical cord in mammals, contains
Which cell organelle is absent in human sperm?
Identify $A, B$ and $C$ in the given human sperm diagram
In female mammals Bartholin's glands open into the
In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was