Table sugar I'm pretty sure
Probably through a electron microscope either TEM or SEM. or possibly a picture through the microscope. I hope that helped.
The process by which <em>two species evolve</em> as a <em>response</em> to <em>changes in one another over time</em> is called, "coevolution" thus the correct answer is that it is an example of <u><em>COEVOLUTION</em></u>
