Which of the following is the study of micro-organisms, mostly viruses and single called organisms such as bacteria, yeasts and protozoa?

Explanation: Correct Answer: Microbiology is the study of microorganisms, including bacteria, viruses, fungi, and protozoa. It is essential for understanding disease, fermentation, and other processes where microorganisms play a crucial role. Other Options: (A) Mycology - This is the study of fungi. (B) Microscopy - This is the use of microscopes to view small objects. (D) Histopathology - This is the study of tissue disease.