A microorganism or microbe is an organism that is so small that it is microscopic (invisible to the naked eye). Microorganisms are often illustrated using single-celled, or unicellular organisms; however, some unicellular are visible to the naked eye, and some multi-cellular species are microscopic.
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Isha Joined: Feb-02-2015 |
I am Isha. I'm 12 and I love science.
