The body structure of green algae may be

Hydrocolloids are obtained from red algae and brown algae,respectively,as:

Identify the algae given below.

During rainy seasons,the ground becomes slippery due to dense growth of

Which of the following statements are applicable to brown algae?
$(I)$ They contain pigments like chlorophyll $a$,chlorophyll $c$,carotenoids,and xanthophylls.
$(II)$ They vary in color from olive green to various shades of brown.
$(III)$ Food is stored as complex carbohydrates,in the form of laminarin or mannitol.
$(IV)$ The cell wall is composed of cellulose and algin.
$(V)$ The cell wall is covered on the outside by a gelatinous coating of algin.

Which among the following do you consider as the best evidence to show that two species of algae are closely related?