Microorganisms, due to their minuscule size, elude detection by the unaided eye. Their visibility necessitates the use of a microscope.
The principal classifications of microorganisms encompass Bacteria, Fungi, Protozoans, Algae, and Viruses. Microorganisms serve both as allies and adversaries to humans.
In what capacity microorganisms benefit us:
1. Antibiotic Action: Antibiotics impede bacterial growth within the body, disrupting their reproductive cycle.
2. Curd Cultivation: Microorganisms, particularly Lactobacillus bacteria, facilitate the conversion of milk into curd through fermentation.
3. Immunization: Vaccines contain weakened or killed microorganisms that stimulate the immune system, providing immunity against specific diseases.
In what capacity microorganisms pose challenges:
1. Citrus Canker: This ailment afflicts citrus species such as lime, oranges, and grapefruit.
2. Fungal Toxins: Certain microorganisms like fungi release toxins that render food inedible.


