The external surface of the crown of a tooth is covered with
A. caries.
B. enamel.
C. pulp.
D. dentin.
Answer: B
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The sodium level inside and outside of a resting cell is an example of the
A. kinetic energy of sodium rushing out of a cell down its concentration gradient. B. kinetic energy of the large difference in sodium concentration on the inside versus the outside of the cell. C. potential energy of a concentration gradient, because sodium is more abundant outside the cell. D. potential energy of an electron transport chain, because sodium has an extra electron to donate. E. conversion of potential energy to kinetic energy, because sodium can never move across the cell membrane and must move across its surface.
Placentally transferred antibodies provide naturally acquired ________ immunity
Fill in the blank(s) with correct word
Your alarm pulls you from sleep while you were in the middle of a vivid dream. You were most likely
A. exhibiting beta wave activity. B. exhibiting gamma wave activity. C. in REM sleep. D. in NREM sleep. E. All of the answer choices are correct.
Under normal circumstances, the wrist can be hyperextended, but the elbow cannot.
Answer the following statement true (T) or false (F)