Q. The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorised as

A) Heterotrophic bacteria
B) Cyanobacteria
C) Archaebacteria
D) Chemosynthetic autotrophs
Explanation

[Solution from source] Heterotrophic bacteria are the most abundant bacteria in nature; Lactobacillus turns milk into curd and Streptomyces produces antibiotics. Cyanobacteria and chemosynthetic autotrophs make their own food, and archaebacteria live in extreme habitats. Answer (1).

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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