14. Answer in detail I

  

 

Antibiotic is a substance, which is synthesised from animals and plantsmicroorganisms and plantsNone of these, that kills the bacteria and cures infections, but it is not effectiveeffective  against viral infections such as cold, dry cough, sore throat, etc.

 

Example:

 

The suppressing chemicals produced from our body specifically reduce the pain by acting either in CNS (Central Nervous System) or peripheral mechanism without affecting consciousness called analgesics.