What is the term for an organism that lives on or in another?

More Questions:

In ice hockey, how many players for each team are allowed on the ice at the same time?

What author created the character of Dr. Gideon Fell?

What is the longest insect?

What do ladybugs feed on during hibernation?

Who played Dolly Levi in the film adaptation of "Hello Dolly"?

What David Guterson novel was made into a 1999 motion picture?

What British TV series featured David Brent and Gareth Keenan?

What was the name of the short-lived 2002 sitcom which starred Andy Richter in the title role?

What folk singer was born Robert Zimmerman?

Who was the first Western European Emperor since the collapse of the Western Roman Empire?

Which US vice president shot a Texas attorney while out hunting quail in 2006?

What Norse explorer introduced Christianity to Greenland around 1000 A.D.?

A photic sneeze is often caused by what stimuli?

Florida Georgia Line’s song, "H.O.L.Y.", is an acronym for what?

Bengui is the capital of which land-locked country?