Explain how natural killer (NK) cells are able to determine which cells have been invaded by pathogens, and once detected how do the NK cells destroy the infected cells. g

Nk cells can respond to infection either directly or indirectly . They respond directly or indirectly. They respond directly by recognizing virus infected cells and indirectly by interacting with dendlitic cells.

did you mean: energy is defined ashyperactivitya caloric measurementthe ability to move matterthe ability to think and analyze this form of energy is called "energy in motion" or "energy of moving matter"potential energy kinetic energy electrical energy1 ptlights on a stage can be examples of all of the following forms of energy exceptelectrical energylight energythermal energysound energywhen one type of energy changes to another this is called energy energy is stored based on their position or shape this is called energy.kinetic potential sound electromagnetic