An egg with yolk in the center and cytoplasm surrounding it is known as:

Column-$I$ contains terms and Column-$II$ contains definitions. Match them correctly and choose the right answer.

Column-$I$	Column-$II$
$A$. Parturition	$1$. Attachment of blastocyst to endometrium
$B$. Gestation	$2$. Release of egg from Graafian follicle
$C$. Ovulation	$3$. Delivery of baby from uterus
$D$. Implantation	$4$. Duration between pregnancy and birth
$E$. Conception	$5$. Formation of zygote by fusion of the egg and sperm

Approximately how many ova are released during the reproductive life cycle of a human female?

Some important events in the human female reproductive cycle are given below. Arrange the events in a proper sequence. $A \rightarrow$ secretion of $FSH$,$B \rightarrow$ growth of corpus luteum,$C \rightarrow$ growth of the follicle and oogenesis,$D \rightarrow$ ovulation,$E \rightarrow$ sudden increase in the level of $LH$.

Choose the correct sequence of events occurring in human reproduction.

The $Oestrus$ cycle is a characteristic of which of the following?