Protons have a ________ charge and, collectively, give an element its ________.
A) negative; polarity
B) positive; atomic number
C) negative; electronegativity
D) positive; ionic charge
Correct Answer:
Verified
Q2: Which macromolecule has a sugar-phosphate backbone?
A) lipid
B)
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Q23: The _ of an organism is defined
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A)
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