Answer:
1. physical fitness
2. circulatory system
3. regular exercise
4. internal system
5. flexibility
6. limiting factors
Explanation
im almost positive these are the answers if i remember correctly from my health class
The ability to lift a weight 12 times or more is not optimal for growing muscle mass. If you can't lift a weight eight or more times you are also not optimally building muscle mass. Generally speaking, the target goal for lifting weights to build muscle is anywhere between eight and 12 reps.
I think it would be kidneys because of the way the question is worded, kidneys are the only things you have 2 of that also is involved in the digestion of foods.
Explanation:
no english i speak spanish
Wait for 3 days if you do icing then okay but of it hurts o take a x-ray and go to doctor