. In case the ova does not fertilise, which of the following events will take place?
(a) Menstruation
(b) Pregnancy
(c) Implantation
(d) Ovulation
. In case the ova does not fertilise, which of the following events will take place?
(a) Menstruation
(b) Pregnancy
(c) Implantation
(d) Ovulation