Which of the following is a unicellular and small alga?

Which of the following organisms exhibits a haplontic life cycle?

Green algae contain:

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?

$A$ research student collected a certain alga and found that its cells contained both chlorophyll $a$ and chlorophyll $d$,as well as phycoerythrin. The alga belongs to:

Describe the types of reproduction in red algae (Rhodophyceae).