Answer
b.
Work Step by Step
Option a. is incorrect. Eukaryotic cells are larger than prokaryotic cells.
Option c. is incorrect. Prokaryotes are sometimes subjected to unstable, hostile environments.
Option d. is incorrect. In general, eukaryotes have more genes than prokaryotes.
Option b. is correct. Multicellular eukaryotes have specialized cells designed to perform different functions; therefore, although all the cells within a eukaryotic organism may contain that organism's entire genome, cells only express a small set of the genes.
