12th Biology Microbes in Human Welfare Objective Questions
1. Microbes are found (A) in soil (B) in air (C) in water (D) everywhere [Ans. (D)] 2. The microscopic proteinous infectious agents are called (A) protozoa (B) fungi (C) prions (D) bacteria (Ans. (C)] 3. The nutritive media for growing bacteria and other microorganisms in the laboratory is called (A) colonies (B) culture media …
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