What type of algae is shown in the figure?

The study of algae is known as ........

Chlorophyll $e$ is generally present in:

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?

In the members of Phaeophyceae,which part of the body functions as the photosynthetic part?

In which of the following algae is mannitol stored as reserve food material?