Question

Antibiotics are chemical substances produced by some microbes that can kill or inhibit disease-causing microbes.

Hint:

Penicillin, discovered by Alexander Fleming, was the first "wonder drug" antibiotic used to treat soldiers in WWII.

Answer 1

Step 1: Understanding the Concept:
Antibiotics are biological products used in medicine to treat bacterial infections.
Step 2: Detailed Explanation:
The term 'Antibiotic' (Greek: anti = against; bios = life) refers to substances that act against life (pathogenic bacteria).
They are naturally produced by certain microbes (like Penicillium mold or Streptomyces bacteria) to inhibit the growth of competing microorganisms.
They are effective against bacteria but not against viruses.
Step 3: Final Answer:
True.