When the amount of hydrogen atoms in the blood sample is above 7.45, it is known as ____.

The apical pulse is the pulse or heartbeat recorded:

A) for 15 seconds and then multiplied by 4. B) using a stethoscope on the apex of the heart. C) using your fingertips on the wrist. D) using your finger tips at the throat.

Under normal circumstances, carbon dioxide is excreted from the body through the:

A) Kidneys B) Urinary tract C) Lungs D) Sweat ducts