Can die and give disease.can kill you and make you sick.Always wash your hands after using the toilet and also after and before meals....
Virus is most harmful
poison
One harmful effect is dying or diesease
tintre
Tonsils
An example of a microorganism acting in a harmful way is the bacterium Streptococcus pneumoniae, which can cause pneumonia, meningitis, and other serious infections in humans.
No exact answer is possible. Certainly many thousands
There are many products of an organism that destroys or weakens harmful microorganisms. This could be an enzyme for example.
Mould eats potentially harmful microorganism, though, as it is itself harmful, eating it isn't recommended. FYI- Penicillin is a form of bread mold.
Microorganisms can have varying effects on different individuals based on factors like immune system health, overall health, and exposure level. Additionally, a microorganism's status as harmful or harmless can change depending on the context, such as opportunistic infections in immunocompromised individuals. Therefore, the classification of microorganisms as wholly harmful or harmless is oversimplified.
Cholera is harmful. "Cholera is an infection of the small intestine that causes a large amount of watery diarrhea."
Not all but some of the micro organisms are responsible for the disease and infection causing. Spoil the food materials.