Microbiology is the study of what?

• A. Plants
• B. Microorganisms
• C. Animals
• D. Viruses only

Answer: (B)

Microbiology is about life that’s too small to see without a microscope. The term combines “micro” (small) with “biology” (life), so it covers microscopic life forms such as bacteria, archaea, fungi, protozoa, and viruses. While viruses are part of what microbiologists study, the field isn’t limited to viruses alone; it encompasses a broad range of microscopic organisms. Plants and animals are macroscopic life forms studied in botany and zoology, not the primary focus of microbiology. So, the best choice is microorganisms.