A group of water molecules are held together by
A. salt.
B. double covalent bonds.
C. polar covalent bonds.
D. ionic bonds.
E. hydrogen bonds.
E
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What is the distal portion of the male urethra that runs the length of the penis?
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In the developing embryo, the midgut rotates 270 degrees around which of the following structures?
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Which statement about red bone marrow is false?
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