Natural parthenogenesis is found in

Composition of semen is

How many eggs are released by a human ovary in a month? How many eggs do you think would have been released if the mother gave birth to identical twins? Would your answer change if the twins born were fraternal?

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

Assertion : Mammalian ova produces hyaluronidase.
Reason : The eggs of mammal are microlecithal and telolecithal.

$I.$ 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.