Algae
Which of the following algal divisions is characterized by possession of chlorophylls A and B, paramylon as the energy storage material, and the presence of a pellical instead of a cell wall?

Pyrrophyta
Euglenophyta
Chrysophyta
Chlorophyta

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Algae
Which of the following best describes the algae known as diatoms?

Cells contain carotenoid pigments as well as chlorophyll A and B
Cells are encased in rigid walls composed of cellulose coated with silicon
Cells have flagella and a light-detecting eye spot
Cells have intricate shells of silicon dioxide with two halves

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