Match the following columns and select the correct option.

Column $I$	Column $II$
$(a)$ Ovary	$(i)$ Human chorionic Gonadotropin
$(b)$ Placenta	$(ii)$ Estrogen and Progesterone
$(c)$ Corpus luteum	$(iii)$ Androgens
$(d)$ Leydig cells	$(iv)$ Progesterone only

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

Differentiate between $(a)$ oestrus and menstrual cycles; $(b)$ ovipary and vivipary. Give an example for each type.

Consider the following:
$A.$ The reductive division for the human female gametogenesis starts earlier than that of the male gametogenesis.
$B.$ The gap between the first meiotic division and the second meiotic division is much shorter for males compared to females.
$C.$ The first polar body is associated with the formation of the primary oocyte.
$D.$ Luteinizing Hormone $(LH)$ surge leads to disintegration of the endometrium and onset of menstrual bleeding.
Choose the correct answer from the options given below:

$A.$ Humans reproduce .....
$B.$ Humans are $\ldots \ldots$
$C.$ Fertilization is .... in humans
$D.$ Male and female gametes are .....
$E.$ Zygote is .....
$F.$ The process of release of ovum from a mature follicle is called .....
$G.$ Ovulation is induced by a hormone called ......
$H.$ The fusion of male and female gametes is called .......
$I.$ Zygote divides to form ... which is implanted in the uterus
$J.$ The structure which provides vascular connection between the foetus and uterus is called ......
Fill in the blanks in the statements $A$ to $J$ above.

Composition of semen is