Question

all microorganisms are __harmful antonivan​

Answer 1

Explanation:

Microscopic creatures—including bacteria, fungi and viruses—can make you ill. But what you may not realize is that trillions of microbes are living in and on your body right now. Most don't harm you at all. In fact, they help you digest food, protect against infection and even maintain your reproductive health.

Answer 2

Answer:

no All are not Harmful . most of them are used in treating sewage and making food products