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Which processes lead to most genetic variation in sexually reproducing organisms?

Which atom in the pictured molecule will have the strongest partial positive charge?

When an atom loses an electron it becomes:

How many neutrons are in an atom of mg-25?

How many valence electrons are in an atom of magnesium?

How many electrons are in a neutral atom of lithium?

What type of bond joins the carbon atom to each of the hydrogen atoms?

Which of these relationships is true of an uncharged atom?

Which of the following is not attached to the central carbon atom in an amino acid?

Which of these animals has only one ear?

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