Damage to the pyramidal cells of the cerebral cortex would directly affect
A) perception of pain.
B) sight.
C) voluntary motor activity.
D) hearing.
E) both perception of pain and voluntary motor activity.
Answer: C
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Simple diffusion and facilitated diffusion differ in that facilitated diffusion requires assistance of a membrane protein to move substances across a membrane.
a. true b. false
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A. 14 and 18; earlier than B. 12 and 16; at the same time as C. 11 and 16; earlier than D. 13 and 16; later than
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A. thrombus B. embolus C. anticoagulant D. hemorrhage E. prostacyclin