Answer :
No not all microorganisms cause harm to the human body some bacteria is health and needed in the body to help us break down food
Answer:
Nope And I'll Tell You Why!
Explanation:
This is false because we have about 300 to 500 kinds of bacteria in our gut and other places and its containing nearly 2 MILLION Genes and bacteria is throughout our entire body but the one in our Gut is the one that has the biggest impact on our well-being.
Hope this helps!