It is to protect it while you are examining it. However, I would like to know why this is under Horse Tack?
The cells of the onion appeared to be crooked.
It is used to place an item on and put it under a microscope to view.
Yes, sometimes there will be green portions of the onion. If you look at those cells under the microscope, you will see chloroplasts.
It should be placed under the clips.
The lamp under the glass slid of the microscope is called the "bulb" lol. just kidding. i have no idea.
A cover slip is a small, and extremely thin piece of glass used in the operation of a microscope. The cover slip is placed on top of the specimen which is then placed under the microscope. The function of the cover slip is that it keeps the specimen in place while you examine it.
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Like a misshaped box. It is grey under a microscope.
on the stage, under the stage clips .
It can seen vaguely and invisible under the microscope
A slide
A glass slide: coverslip