Answer:
Human subject research is systematic, scientific investigation that can be either interventional (a "trial") or observational (no "test and Human subject research can be either medical (clinical) research or non-medical (e.g., social science) research.
The first one A, Nutrition. Nutrition takes in and uses the food to creat nutrient substances to restore energy, grow, to repair itself, and calories.
Answer: Nutrition.
It results in maintaining weight
Hope this helps :)
3 times, however, the same team member cannot touch the ball twice consecutively. {if the sport you're talking about is volleyball}