Eukaryotic cells differ from prokaryotic cells in that only eukaryotic cells                  . a. contain DNA; b. have a plasma membrane; c. are considered to be alive; d. have a nucleus; e. are able to evolve

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1. Identify the key differences between eukaryotic and prokaryotic cells. Eukaryotic cells are characterized by having membrane-bound organelles, while prokaryotic cells do not.
2. Review each option and determine if it is exclusive to eukaryotic cells. Both eukaryotic and prokaryotic cells contain DNA and have a plasma membrane, and both are considered alive.
3. Consider the option about having a nucleus. Recall that one of the defining features of eukaryotic cells is the presence of a nucleus, which houses the cell's DNA, separated from the rest of the cell by a nuclear membrane.
4. Evaluate the option regarding the ability to evolve. Both eukaryotic and prokaryotic cells are subject to evolutionary processes.
5. Conclude that the correct answer must be the one that states a feature unique to eukaryotic cells, which in this case is the presence of a nucleus.