Failure of descending testis into scrotum is known as
Impotency
Cryptorchidism
Castration
Paedogenesis
The foetal membrane which is the source of first blood corpuscle to enter the circulation of the embryo is called
The human sperms were first seen and discovered by
The extra-embryonic membranes of mammalian embryo are derived from
Pseudopregnancy is a physiological condition comparable to normal pregnancy except that there is no