alleryWhich bacterial group gains energy by oxidising inorganic substances?
APhotosynthetic autotrophs
BChemosynthetic autotrophs
CObligate animal parasites
DOrganic-matter decomposers
Answer & Solution
Correct answer: B. Chemosynthetic autotrophs
Chemosynthetic autotrophs oxidise inorganic substances such as nitrites or ammonia and use the energy for ATP production. Photosynthetic autotrophs use light; heterotrophs depend on organic matter. Bacteria mainly reproduce by fission.
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