D is the answer because i took the same test and got it right
Do they work you mean?? Different variations of the position of your hands hits different muscle parts. Like doing push-ups with your hands far apart hits more of the chest area. Doing them with your hands close hits more of your triceps. I personally like them close.
True. Because the calorie calculation is based on how exclusively the heart rate is. Which the device runs through the algorithm.
Hope this helps :)
Answer:
they have big effects; it usually affects cells, tissues, and systems other than the target cells
Explanation:
