Which of the following is not among the 3 main classes of Algae?

Options

A. Chlorophyceae
B. Rhodophyceae
C. Phaeophyceae
D. Gymnosperms

Answer

D

Explanation

Algae are classified into three main classes - Chlorophyceae(Green algae), Phaeophyceae(Brown algae), and Rhodophyceae(Red algae).These divisions are based on major photosynthetic pigments present, form of stored food, cell wall composition and number of flagella and position of insertion.