*Question*: Which of the following statements best describes one way that the Moon is different from Earth?
*Answer*: The Moon has almost no atmosphere.

*Question*: What is a worldwide increase in temperature called?
*Answer*: global warming

*Question*: A single prokaryotic cell can divide several times in an hour. Few eukaryotic cells can divide as quickly. Which of the following statements best explains this difference?
*Answer*:
Eukaryotic cells are more structurally complex than prokaryotic cells.