Which of the following plants possesses flowers on its rhizome?

An angiospermic male plant with $24$ chromosomes in its pollen mother cells is crossed with a female plant bearing $24$ chromosomes in its root cells. What would be the ploidy of the embryo and endosperm respectively formed after this cross?

In angiosperms, $.......$ carries the male gametes and $.......$ carries the egg cell.

Identify the plant parts that consist of two generations,one within the other:
$(a)$ Pollen grains inside the anther
$(b)$ Germinated pollen grain with two male gametes
$(c)$ Seed inside the fruit
$(d)$ Embryo sac inside the ovule

In $Agave$ (Century plant),vegetative propagation occurs through which of the following?

Match the plants given in Column-$I$ with their type of endosperm or seed characteristic in Column-$II$. Choose the correct answer from the options given below.

Column-$I$	Column-$II$
$i$. Coconut	$a$. Helobial
$ii$. Balsam	$b$. Perisperm
$iii$. Asphodelus	$c$. Nuclear
$iv$. Black pepper	$d$. Cellular