The size of a cell is typically found by capturing an image under a microscope then using software to measure its diameter. Two cells are measured using this method:

Cell D: 4.61 x 10^-3 centimeters
Cell E: 5.5 x 10^-4centimeters
What's the difference between the diameters of the two cells? Express your answer using either standard notation or scientific notation.

To find the difference between the diameters of cell D and cell E, we need to subtract the diameter of cell E from the diameter of cell D:

4.61 x 10^-3 - 5.5 x 10^-4 = 4.61 x 10^-3 - 0.55 x 10^-3
= 4.06 x 10^-3 centimeters

So, the difference between the diameters of cell D and cell E is 4.06 x 10^-3 centimeters.