In $Ulothrix$,the zygote is

Identify $X$ and $Y$ in the given figure.

$A$ spore of Spirogyra sp. after the resting period is:

Select the correct option from the given list regarding algal classes and their stored food materials:
$(1)$ Rhodophyceae - Pyrenoids
$(2)$ Phaeophyceae - Laminarin
$(3)$ Bryophytes - Mannitol
$(4)$ Chlorophyceae - Floridean starch

Statement $S$: Fungi are known as primitive plants. Statement $R$: Professor Iyengar is known as the father of modern phycology in India.

Assertion $(A)$: In algae,an embryo is formed from the zygote after fertilization.
Reason $(R)$: Algae reproduce sexually through conjugation.