Give differences: Male gametophytic stage and Female gametophytic stage.

Which of the following statements is incorrect?

Assertion $(A)$: Death is a meaningful event.
Reason $(R)$: Death limits the number of individuals of each species and returns the materials of the body,formed by life elements,back to the environment.

Which plant loses its economic utility if its fruits are produced by induced $..........$?

Statement $(X)$: Endosperm is formed before fertilization.
Statement $(Y)$: Double fertilization is observed.

How many of the following statements are true about angiosperms?
$A$. The generative cell floats in the cytoplasm of the vegetative cell.
$B$. The stalk of the ovule is called the funiculus.
$C$. Pollen grains are shed at the two-celled stage.
$D$. The embryo sac is diploid.
$E$. The megaspore mother cell towards the chalazal end becomes functional.