A newborn baby typically has about ________ bones whereas a typical adult has ________ bones.
A. 228; 206
B. 206; 254
C. 206; 228
D. 270; 206
E. 254; 206
Answer: D
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The AV node is important because it
A) delays the transmission of the electrical impulses to the ventricles in order for the atria to finish contracting. B) directs electrical impulses from the ventricles to the atria. C) serves as the pacemaker in a normal heart. D) electrically opens the AV valves. E) None of these answers are correct.
Which of the following substances would be most acidic?
A) lemon juice, pH = 2 B) urine, pH = 6 C) tomato juice, pH = 4 D) white wine, pH = 3 E) stomach secretions, pH = 1
Which of the following does NOT contain cholesterol?
a. chylomicrons b. high density lipoproteins c. low density lipoproteins d. very low density lipoproteins e. All of these contain cholesterol.
A person with more slow fibers performs better in long distance running?
a. true b. false