If you are asked to classify various algae into different groups,which of the following characteristics would you choose?

Green algae are considered as ancestors of higher plants because they share similarities with higher plants in terms of ........

Most algal genera are haplontic,but some of them such as $A$,$B$,and $C$ are haplo-diplontic. Here $A$,$B$,and $C$ refer to:

The absence of chlorophyll in the lowermost cells of $Ulothrix$ indicates:

What is the dominant phase in the life cycle of algae?

$(i)$ Green algae occur in fresh water,brackish water,and salt water.
$(ii)$ Habitat of Brown algae: fresh water (rare),brackish water,and salt water.
$(iii)$ Some red algae are found in fresh water,mostly occur in salt water,and some are in brackish water.
$(iv)$ Most of the red algae are multicellular.
$(v)$ Red algae may occur in both well-lighted regions close to the water surface and also at great depths in oceans where light penetration is little.
$(vi)$ The cell wall of red algae consists of cellulose $+$ agar.
$(vii)$ $2-8$,equal and apical flagella in green algae.