Answer:
B. QRS wave
Explanation:
The position of QRS wave on an electrocardiogram corresponds with the point of highest blood pressure in the vessels leaving the heart. Hence, option (b) is the correct answer.
A common answer would be either depression or post-traumatic stress disorder.
Pretty sure (d) bc they are young and not developed!
<span>The law that prohibited the marketing of new drugs unless they were adequately tested to demonstrate safety was the </span>Federal Food, Drug, and Cosmetic Act of 1938
