At menopause,there is a rise in the urinary excretion of:

Could the number of eggs or young ones produced by an oviparous and viviparous mother be equal? Why?

Match the column-$I$ with column-$II$.

Column-$I$	Column-$II$
$(A)$ Leydig cells	$(i)$ Provides nutrition to developing sperm
$(B)$ Sertoli cells	$(ii)$ Secrete mainly progesterone
$(C)$ Corpus luteum	$(iii)$ Secrete inhibin
$(D)$ Developing follicle	$(iv)$ Secrete androgen

Which of the following female structures is homologous to the male structure?

$I.$ Sperm cells,when released from the body and placed in a petri plate,remain alive for a much longer duration.
$II.$ Semen contains chemicals that cause the female's smooth muscles to contract.

Identify the $CORRECT$ match from the Columns $I$,$II$ and $III$.

$I$	$II$	$III$
$1$. Interstitial cells	$a$. Cortex of ovary	$i$. Follicular fluid
$2$. Sertoli cells	$b$. Ovarian follicle	$ii$. Progesterone
$3$. Granulosa cells	$c$. Testis	$iii$. Attachment of sperm bundle
$4$. Cells of corpus luteum	$d$. Seminiferous tubules	$iv$. Testosterone