作者:Mayelyn Arguello 3 年以前
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Give examples of how harmful organisms can spread.
A microorganism is an organism so small that people cannot see them with the naked eye.
Microorganisms can be harmful and useful organisms.
Harmful microorganisms include fungi, bacteria, protozoa, etc.
They cause several diseases in human beings, animals, and plants, which can even lead to death.
The harmful microorganisms not only can damage the human body, but also the food we eat.
What diseases can they cause?
Subtopic
Give examples of how the spread of harmful organisms can be prevented.