Algae are primarily classified based on . . . A. their means of motility B. whether they produce toxins or not C. the color of their photosynthetic pigments D. their method of sexual reproduction E. the host they usually infect

Option C.

Based on the color of their photosynthetic pigment.

Explanation:

Algae are simple aquatic plants without flowers that can perform photosynthesis.

They are classified based on the color of the photosynthetic pigment into three groups.

Chlorophyceae: chlorophyii Sand B are present in this group and they are also called blue green algae.

Phaeophyceae: chlorophyii A,B and fuxoxanthin are available in it. The fuxoxanthin bring about brown color in them and they are called brown algae.

Rodophyceae: chlorophyii Sand D and phycoerthrin. Phycoerthrin bring about red color and they are called red algae.

Algae are classified on C) the color of their photosynthetic pigments

Explanation:

Primary classification is to green algae, brown algae and red algae.

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