Question

*1. What are antibiotics ? When do they develop ? How they help​

Answer 1

Answer:

Hello!

Any substance that inhibits the growth and replication of a bacterium or kills it outright can be called an antibiotic. Antibiotics are a type of antimicrobial designed to target bacterial infections within (or on) the body.

Explanation:

Hope it helps you a lot

Please mark me as brainliest.....

Answer 2

Answer:

antibiotic medicines made from bacteria and fungi it is used to cure disease by killing or stopping the growth of disease causing germs .Penicillin was the first antibiotic discovered by Sir Alexander Fleming in the year 1928 from a green mould penicillium notatum.

Similarly,Streptomycin,tetracycline,erythromycin are the examples of Abitibiotics obtained from different fungi and plants.Antibiotics are used to control microbial diseases in and plants. they are not effective on viral disease.