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Which of the following best describes the algae known as diatoms? | |
A. | Cells have intricate shells of silicon dioxide with two halves [Correct Answer] |
B. | Cells are encased in rigid walls composed of cellulose coated with silicon [Wrong Answer] |
C. | Cells have flagella and a light-detecting eye spot [Wrong Answer] |
D. | Cells contain carotenoid pigments as well as chlorophyll A and B [Wrong Answer] |