$A.$ In roses,the endosperm is formed after fertilization.
$R.$ Double fertilization is observed in angiosperms.

Animals that give birth to young ones are known as:

Given below are two statements: One is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$.
Assertion $(A)$: Both wind and water pollinated flowers are not very colourful and do not produce nectar.
Reason $(R)$: The flowers produce an enormous amount of pollen grains in wind and water pollinated flowers.
In the light of the above statements,choose the correct answer from the options given below:

Progeny resulting from cross pollination are

Even in the absence of pollinators,seed-setting is assured in $-$

Match the following columns:

Column-$I$	Column-$II$
$(a)$ Zygote	$(1)$ Seed
$(b)$ Ovule	$(2)$ Seed coat
$(c)$ Ovary	$(3)$ Embryo
$(d)$ Integument	$(4)$ Fruit