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Name the organisms which do not derive energy directly or indirectly from sun

1. Chemosynthetic bacteria
2. Pathogenic bacteria
3. Symbiotic bacteria
4. Mould

Correct answer: Chemosynthetic bacteria

Solution

Chemosynthetic bacteria obtain energy by oxidizing inorganic substances such as ammonia, hydrogen sulfide, or iron compounds. Because their energy source is chemical rather than solar, they do not derive energy directly or indirectly from the sun.

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