Match the following. Match the items in the left column to the items in the right column. 1. blood pressure the total amount of blood the heart pumps in one minute
2. cardiac output the force exerted on the walls of the blood vessels by the blood that moves through them
3. dilate to widen or get larger in size
4. heart rate the number of times your heart beats in a minute
5. stroke volume the amount of blood that the heart can pump in a single beat

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.