Spermiogenesis is possible due to....
$PRL$
$ACTH$
$FSH $
$MSH $
Embryologists can presume the future organs of the embryo in
The first sign of the growing foetus may be noticed by listening to the heart sound carefully through the stethoscope. Embryo's heart is formed _________.
Ovum receives the sperm in the region of
Tertiary egg membranes are lacking in mammals with the exception of the
A change in the amount of yolk and its distribution in the egg will affect