Answer. C the answer would be peristalsis because it acts as is a series of wave like muscle contractions.
D. Calorie is the correct answer
Masturbating, playing video games, sleeping, taking a shower, going for a walk, etc.
Depends on what for, and what you PCP or specialists prescribes. If say you have high blood pressure, and your PCP is giving you both Nitros and aspirins, than yeah sure you can take both (this is the cocktails EMT's use for suspected MI's). However if not otherwise indicated, never. Under. ANY Cirumstance take more two medications at the same time.