Question

(1) Chlamydomonas is microscopic whereas Sargassum is macroscopic; both are algae,
Which characters of these plants includes them
in one group ?
​

Answer 1

both of them have common cell wall structure and composition.

i.e. cellulose, galactans and mannans

Answer 2

Chlamydomonas is microscopic whereas Sargassum is macroscopic; both are algae,

Which characters of these plants includes them

in one group ?

Seshan I guess you were busy at the time

Gnsd buddy :)