Note that the scale bar under the photo is labeled 1 μm (micrometer). The scale bar works the same way as a scale on a map, where, for example, 1 inch equals 1 mile. In this case the bar represents a much smaller distance. What is the approximate diameter of the mature parent cell? What is the approximate diameter of the mature parent cell? a. 0.25 µm b. 4 µm c. 40 µm d. 4 mm
