(URGENT) If you did not get enough sleep the night before, you may: A. have no REM sleep B. have no Stage 4 sleep C. have more REM sleep than normal D. have less REM sleep than normal

Which describes the role of the diaphragm during inhalation? the diaphragm flattens, making the chest cavity larger, and air flows in. the diaphragm moves upward, making the chest cavity larger, and air flows in. the diaphragm flattens, making the chest cavity smaller, and air is sucked in. the diaphragm moves upward, making the chest cavity smaller, and air is pushed out.