Meiosis takes place in

Match the following columns:

Column-$I$	Column-$II$
$p$. Gemmules	$v$. Sponge
$q$. Conidia	$w$. Hydra
$r$. Zoospores	$x$. Penicillium
$s$. Bud	$y$. Amoeba
-	$z$. Chlamydomonas

Select the option that represents the organisms in descending order of their life span.

Differentiate between asexual reproduction and sexual reproduction.

Identify which of the following organisms are monoecious and which are dioecious:
$(a)$ Earthworm ........... $(b)$ Chara ...........
$(c)$ Marchantia ........... $(d)$ Cockroach ...........

Clear-cut distinction between vegetative,reproductive,and senescent phases is shown by: