Which of the following is a step in using a fire extinguisher to out out a firea have the extinguisher inspectedb shake the fire extinguisherc turn the extinguisher upside down d point the nozzle at the base or the fire

You are given an electron micrograph of a bacterial cell. in the micrograph you can clearly see three thin layers of different densities surrounding the cell. based on the micrograph, you can infer that this cell is and would appear after application of the gram stain procedure. gram-negative / pink gram-positive / purple gram-positive / pink gram-negative / purple