When sodium chloride (NaCl) is dissolved in water, the sodium ion A. is repelled by the oxygen atoms of water molecules.
B. Is attracted to the oxygen atoms of water molecules.
C. is attracted to other sodium ions that are being dissolved.
D. is attracted to the hydrogen atoms of water molecules,

Which of the following is the best definition of a eukaryota? a. a one-celled organism that does not have a membrane-bound nucleus b. a one-celled organism that does not have a cell wall c. an organism whose cells each contain a membrane-bound nucleus d. an organism whose cells each have a cell wall