State whether the statements are true or false. (i) Systolic pressure shows the upper limit of blood pressure.
23. State whether the following statements are true or false : (a) Some organisms store wastes in body parts. (b) The value of systolic pressure is always lower than that of diastolic pressure.
State whether the following statements are true or false.
(xviii) Systolic blood pressure in an adult varies from 100 - 140 mm Hg.