The 3 zones are t<span>he surface zone, the transition zone, and the deep zone.</span>
A and B. Because if heart cells were located in your brain, your brain would not perform the right function. And B because if cells perform different functions and are in the wrong spot im your body it wouldnt work.
The majority takes place in the small intestine
The vacuole i believe is the answer
All organic compounds have carbon in common
