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The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorised as:
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- Cyanobacteria
- Archaebacteria
- Chemosynthetic autotrophs
- Heterotrophic bacteria
Correct Option: D
The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the heterotrophic bacteria. Lactobacillis bacteria convert milk into curd.
