In angiosperms,microsporogenesis and megasporogenesis

How many meiotic divisions are required to produce $200$ and $400$ seeds in pea plants,respectively?

What is cryopreservation?

Which plant is shown in the given figure?

Select the correct option for unusual flowering patterns.

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: