The atomic number of oxygen, 8 indicates that there are eight a. protons in the nucleusnof an oxygen atom b. oxygen nuclides c. neutrons outside the oxygen atom's nucleus d. energy levels in the oxygen atom's nucleua

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