The serum used for emergency treatment of snakebites stimulates ________ immunity.
A. natural passive
B. natural active
C. artificial active
D. artificial passive
Answer: D
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In the nervous system, the term membrane potential refers to the
a. ability of a cell membrane to conduct an electrical impulse b. separation of charges across a biological membrane. c. ability of a membrane to give rise to vesicles. d. ability of a cell membrane to transport Na+ and K+ ions e. ability of the plasma membrane to form T-tubules.
Which of the following is not an artery of the base of the brain?
A. Subclavian artery B. Posterior communicating artery C. Basilar artery D. Vertebral artery E. All of these are arteries of the base of the brain.
Depression of the ribs increases the lateral dimensions of the thoracic cavity.
Answer the following statement true (T) or false (F)