NCERT Important Questions Class 9 Science biology Chapter 13
Important NCERT Extra Questions
Chapter 13 Why do We Fall ill
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
What are antibiotics ? Give two examples.
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Antibiotics. An antibiotic is a biochemical produced by 1 microorganism (e.g., Bacteria or fungi) which kills or block growth of other microorganisms (pathogens) by blocking their life processes without harming human cells, e.g., penicillin, streptomycin