Which of these statements describes extracellular fluid
A)It is the external environment of the body. B)It is the fluid inside each cell. C)It consists of plasma only. D)It consists of plasma and interstitial fluid.
Which of the following is a mechanistic rather than a teleological explanation of a physiological phenomenon
A)A person breathes to obtain oxygen. B)A person sweats to cool off. C)A person's stomach secretes digestive juices because it is stimulated by the nervous system. D)A person's heart beats to pump blood.