11. When viewing a sample of onion cells using a microscope, the student placed the cells on a slide and placed a coverslip over it. What is the purpose of the coverslip? A. To protect the onion C. So that the onion cells do not fall of the slide B. To get a better view of the cells D. To keep the cells flat
12. To focus on a specimen, it is best to start with which objective lens? A. Intermediate magnification C. highest magnification B. B. lowest magnification D. no magnification
13. What is the total magnification of a microscope with two lenses when one lens has a magnification of 15X, and the other lens has a magnification of 30X? A. 15x B. 45x C. 30x D.450x
14. From the following list, choose the correct order in which light passes through it. A. Slide - eyepiece objective lens - mirror B. Mirror objective lens eyepiece → slide C. Mirror - slide objective lens eyepiece D. Mirror eyepiece objective lens slide
15. Why is it necessary for the specimen to be observed under the microscope must be thin? A. So that the image will be clearer C. so that light could pass through the specimen B. The image would be bigger D. so that a high magnification objective can be used​