Answer:
CDC is the correct organization .
I believe the correct answer is 5 days a week are suggested in order to maintain your present fitness level.
C-compressions
A-Airways
B- breathing
This acronym is to remind you the three vital important points of CPR
Push ups, because it's likely that you'd do push ups in gym. You must have balance to do them.
Mechanoreceptors
Mechanoreceptors are sensory receptors that respond to physical formations of membrane generated by touch, stretch, pressure, motion and sound. The mechanoreceptors in the cochlea of the inner ear are the most sensitive in the human body. The mechanosensory stereocilia vibrates when sound waves pass the cochlear fluid and transduce sound into nervous signal.