Can you guess what these images under the microscope are?


Microscopes are awesome.

They make minute things look large and allow us to see details normally hidden to the human eye.

A speck of dust contains worlds within worlds, blood cells possess unimaginable beauty, and the amount of complexity going on within a single hair is truly humbling. 

But we digress: can you identify what's going in in these images? One of them is used dental floss, which is impressively disgusting.

Note: the quiz was put together by a science bod (with terrible grammar) on Playbuzz