Microorganisms

Microorganisms are tiny living beings, such as bacteria, viruses, fungi, and protozoa, that are invisible to the naked eye. They play essential roles in nature, including breaking down organic materials, supporting digestion, and maintaining environmental balance. While some microorganisms can cause illness, many are harmless or beneficial, contributing to processes like food production (yeast in bread) and nutrient cycling in ecosystems. Due to their small size and diverse functions, microorganisms are fundamental to life on Earth, influencing health, the environment, and industry.