Which microscope would you use to examine living cells lining the respiratory tract to determine how the cells use tiny hairs to move dirt away from lungs?

Answer 1

To examine living cells lining the respiratory tract and observe how they use tiny hairs (cilia) to move dirt away from the lungs, a light microscope would be suitable. This type of microscope allows for the observation of living specimens and provides sufficient magnification to view the movement of cilia. For enhanced visualization, techniques like phase contrast or differential interference contrast microscopy could be employed to highlight the dynamic processes occurring in the cells.