Chlorophyll $e$ is generally present in:

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

Which of the following exhibits characteristics similar to algae?

In which of the following,all listed genera belong to the same class of algae?

Archegoniophore is absent in .......

Read carefully the given statements about algae and choose the correct option.
$I$. The plant body is thalloid.
$II$. Mainly aquatic.
$III$. Reproduction takes place by vegetative,asexual,and sexual methods.
$IV$. Volvox and Ulothrix are the colonial forms of algae.