Microorganisms can come in different types with the most common being

bacteria, viruses, fungi, and protozoa. Each type of microorganism has unique characteristics and functions in the environment. Some microorganisms are beneficial, such as bacteria that help with digestion in the gut, while others can be harmful, such as viruses that cause illnesses like the flu. Understanding the different types of microorganisms is important for managing their impact on human health and the environment.