Ulothrix occurs in

In which of the following are Chlorophyll-$a$,Chlorophyll-$d$,and Phycoerythrin found?

Consider the following statements:
$I.$ In red algae,vegetative reproduction takes place by fragmentation.
$II.$ In red algae,the food is stored as floridean starch,which is very similar to amylopectin and glycogen in structure.
$III.$ The cell wall of red algae consists of chitin.
Which of the statements given above are correct?

Ulothrix filaments produce . . . . . . .

Which type of algae possesses food-conducting tubes similar to the phloem found in vascular plants?

Algin is a phycocolloid,obtained from the cell wall of