How long can the average human breathe under water

What does the body do during the resistance phase of the gas model? options: a) it prepares to fight danger or run from it. b) it identifies the primary source of danger. c) it begins to return responses to normal. d) it repairs itself from fatigue and stress.

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.

Cammy is cooking hamburger patties for lunch. after a few minutes on the grill, she checks the internal temperature of the patties and finds them to be at 135°f. what should cammy do next?