The actual diameter of the animal cell is 45 um.) The observed diameter of the animal cell in the electron micrograph is 1.8 cm.
Calculate the magnification used to view the image.
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Magnification = ?

Which of the following is a main difference in cell structure between an onion cell and a human cheek cell? a. an onion cell contains one nucleus, whereas a human cheek cell contains two nuclei. b. an onion cell has a cell wall. c. a human cheek cell contains chloroplasts. d. there is no difference between an onion cell and a human cheek cell. you for your.

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.

The image shows a group of fish. the type of social behavior shown in the image is called