External fertilization is mostly observed in organisms that.....

Match the following columns:

Column-$I$	Column-$II$
$(A)$ Clone	$(1)$ Agamospermy
$(B)$ Plant apomixis	$(2)$ Scion
$(C)$ Grafting	$(3)$ Callus
$(D)$ Tissue culture	$(4)$ Flower
$(E)$ Inflorescence	$(5)$ Ramet

Match the following:

Column-$I$	Column-$II$
$(1)$ Germ pore	$(a)$ Lack of sporopollenin
$(2)$ Parthenium	$(b)$ Malva
$(3)$ Self incompatibility	$(c)$ Palms
	$(d)$ Contaminant with imported wheat

Differentiate between Microsporogenesis and Megasporogenesis.

What is the ploidy of $MMC$,antipodal cell,central cell,and egg cell,respectively?

Identify the haploid and diploid structures from the following list:
$I$ - Megaspore mother cell
$II$ - Microspore mother cell
$III$ - Egg cell
$IV$ - Male gamete
$V$ - Synergid
$VI$ - Embryo
$VII$ - Antipodal cell
$VIII$ - Zygote
$IX$ - Megaspore
$X$ - Microspore
Select the correct grouping for Haploid and Diploid structures.