a student with swollen gums gargles with warm salt water and experiences decreased swelling. which statement best explains what has occurred? responses the high temperature of the warm salt water kills all infection-causing microbes. the high temperature of the warm salt water kills all infection-causing microbes. the saltwater solution is absorbed by cells in the gums. the saltwater solution is absorbed by cells in the gums. the water in the gums moves from a high to a low concentration of water. the water in the gums moves from a high to a low concentration of water. the salt in the saltwater solution is transferred into the cells through passive transport.