Spirogyra differs from moss-protonema in having

Cyanobacteria name has been given to

Red colour of the red algae is due to

Which is a rich source of protein ?

Filaments of Ulothrix are

Algae is a nonvalid taxinomic term that refers to

Zooxanthellae are algal symbiont that live within coral reef animals. These algae belong to

Which of the following is correct?
All members of photolithotrophic autotrophs are also members of algae, but not all members of algae are members of photolithotrophic autotrophs

Characteristics used to place algae into divisions include all of the following except

Number of flagella produced by motile cells in