Agranal chloroplasts are found in

Autotrophic thallophytes are called .........

Chlorophyll $c$ and $d$ are characteristic pigments of ........ respectively.

The cell wall of algae is made up of $.......$.

$A$ : $Fucus$,a brown alga shows oogamy.
$R$ : Female gamete is quite large as compared to the male gamete.

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