How are antibiotics classified ?

The discovery of antibiotics makes the treatment of diseases very easy. How are antibiotics classsified.

The discovery of antibiotics makes the treatment of diseases very easy. i. What do you understand by 'antibiotics'? ii. Which was the first antibiotic and who discovered it? iii. How are the antibiotics classified? -

How are autotrophs classified?

How are pollutants classified?

How are vitamins classified ?

How are agranulocytes classified?

How are vitamins classified?