Comparative sizes of biological objects

Interesting flash drive, which shows various small things - from coffee beans to carbon atoms. For the scale corresponds to the slider below.
PS To the legitimate question “Why is the chromosome larger than a spermatozoon?” The answer is this: firstly, the sperm contains not a complete one compared to a normal DNA cell, and secondly, DNA is “archived” in it, that is, it occupies a minimal volume.
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