Which best describes Internet wikis as a source of scientific information?

a. Wikis are good sources of reliable scientific information.

b. Wikis are written only by experts in their fields.

c, Wikis are always extensively peer reviewed.

d. Wikis are written or edited by anyone.

The correct answer is D. Wikis are written or edited by anyone. They are not very good sources of information because they are community edited, even though there can be experts writing on them. For the most reliable information you should use textbooks or papers written and published, not online wikis that can be created and edited by anyone.