I believe the appropriate answer is a cooling-off period. The cooling off period us described as the state of returning to the offender's usual way of life between homicides. The key distinction between the serial killers and mass or spree killers is this emotional cooling off period in which the killer blends back into his/her normal life.
The root of the plant is what takes in water.
The organelle in a plat cell which carries out the process of photosynthesis is the chloroplast. The mitochondria in cells is where cellular respiration takes place and the cell well is what provides structure, support, and protection for the cell.