Tachycardia is a condition when the heart rate is greater than 100 beats per min at rest. The electrocardiogram is a diagnostic tool that measures and records the electrical activity of the heart. Bradycardia on the other hand is when the heart rate is slower than normal. The Tachycardia and bradycardia can arise from either the SA node or from other areas of the cardiac.
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c lunar and solar eclipse
Explanation:
How was Bohr's atomic model similar to Rutherford's model?
it described a nucleus surrounded by a large volume of space.
The central nervous system by sending messages from the brain through the nerves that go to your spine.
