Thermal emersion circulators is what it is called
Answer:
The atria and ventricles work together, alternately contracting and relaxing to pump blood through your heart. The electrical system of your heart is the power source that makes this possible.
Your heartbeat is triggered by electrical impulses that travel down a special pathway through your heart:
Explanation:
Hope this helps
Answer:
It's the 4th one. The car is accelerating gradually.
