What name is given to a main downward-growing root of a plant?

More Questions:

What does the prefix "pseudo" mean?

What is added to a Cosmopolitan martini to make it pink?

What board game's tokens include a rope, a lead pipe, and a candlestick?

What ice cream chain once sold a ketchup-flavored ice cream?

What two-sport athlete didn't speak in his early 1990's Nike commercials because of his bad stutter?

What was the sequel to "Little Women"?

From what language did English borrow the word "catamaran"?

Since 1961, where have Margo Magee, Tommie Thompson, and Lu Ann Powers lived?

The city of Liverpool, England is served by an airport named for what man?

How many stars does Aries consist of?

What TV series detective was played by Peter Falk?

What CBS sitcom aired Monday nights at 9 pm, from 1951 to 1957?

Elvis's manager, Colonel Tom Parker, had what earlier act?

By what nickname was Simon Bolivar was also known as?

Which war was fought along the 38th parallel?