Polyspermy is normally prevented by

Polyspermy is common in

Polyspermy is common in

How Polyspermy is prevented in Human ?

Polyspermy refers to

Polyspermy refers to

Polyspermy is prevented by

What is polyspermy? How is it prevented?

Polyspermy is prevented by:

How is polyspermy in human beings prevented ?

How does blood get coagulated on coming out from an injured vessel ? How is coagulation normally prevented in an uninjured vessel ?