A. T-cell. This activates to fight off the virus or bacteria in your body.
To do push up because you need jt
Stored energy is called POTENTIAL energy, and movement is called KINETIC energy.
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.
