Seminal plasma in humans is rich in
fructose and calcium but has no enzymes
glucose and certain enzymes but has no calcium
fructose and certain enzymes but poor in calcium
fructose, calcium and certain enzymes.
The phenomenon of fertilization was first perceived by
The second maturation division of the mammalian ovum occurs
Cleidoic eggs are found in
The eutherian placenta is derived from or In mammals placenta is formed by
The yolk plug is a structure in gastrula which is formed by the protrusion of