- 1(current)
Q. No.The chief producers in the oceans are:
| 1. | Floating hydrophytes | 2. | Blue green algae |
| 3. | Desmids | 4. | Diatoms |
Subtopic: Kingdom Protista: Chrysophytes |
87%
From NCERT
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The cell walls of diatoms are ‘indestructible’ as they are embedded with:
| 1. | Silica | 2. | Chitin |
| 3. | Calcium | 4. | Raphides |
Subtopic: Kingdom Protista: Chrysophytes |
95%
From NCERT
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- 1(current)
Q. No.
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