![Which of the following best describes the algae known as diatoms?](https://www.gkseries.com/blog/wp-content/uploads/2021/12/Which-of-the-following-best-describes-the-algae-known-as-diatoms.png)
Q. Which of the following best describes the algae known as diatoms?
- Cells have intricate shells of silicon dioxide with two halves
- Cells are encased in rigid walls composed of cellulose coated with silicon
- Cells have flagella and a light-detecting eye spot
- Cells contain carotenoid pigments as well as chlorophyll A and B
Answer: Cells have intricate shells of silicon dioxide with two halves