Will mark brainliest Tyyy

Which best describes the scientific process

The image shows ekgs of a person with normal heart waves and of a person having tachycardia. based on this image, what kind of condition is tachycardia? a. the heart beats abnormally fast. b. the heart beats abnormally slow. c. the right atrium of the heart stops working. d. the left ventricle pumps less blood to the aorta.

In the context of the neural impulse, which of the following is true about the depolarization of neuron membranes?