14. Why do we need to place a cover slip over a specimen on a slide?
a. to prevent the slides from breaking
b. to prevent the slides from contaminating
c. to protect the objective lenses if they touch the slide
d. to protect the eyepiece
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Answer:
The main function of the cover slip is to keep solid specimens pressed flat, and liquid samples shaped into a flat layer of even thickness. This is necessary because high-resolution microscopes have a very narrow region within which they focus. The cover glass often has several other functions