Answer:
True
Explanation:
The sinoatrial node is a small body of specialized muscle tissue in the wall of the right atrium of the heart that acts as a pacemaker by producing a contractile signal at regular intervals.
I think the answer would be atoms, but i may be wrong. although that seems like the most logical answer.
C, A, B, B, C, B
Conservation is energy can neither be created nor destroyed.
When something is stationary it has potential energy and when it gets set into motion it has kinetic energy.
