Give the term / reason : <br> a) Mechanism responsible for parturition. <br> b) Role of oxytocin during expulsion of the baby out of uterus. <br> c) Why does zona pellucida layer block the entry of additional sperms? <br> d) Sperm cannot reach ovum without seminal plasma. <br> e) All copulations do not lead to fertilization and pregnancy.

Share

Please log in or register to add a comment.