Gapfilling Quiz

Fill in all the gaps by dragging the words in the top bar to their correct places.
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   eye      fungi      harmful      living      microscope      shapes      three   
agar280.pngThese are organisms too small to be seen with the naked .
They may be viewed using a .
They are found almost everywhere and can be both and beneficial to humans.
Although extremely small, these microbes come in many different and sizes.
There are main groups of microbes: bacteria, and viruses.