You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Q: Category: SCIENCE & NATURE 
Clue: Locusts are short-horned or short-antennaed varieties of these

A: grasshoppers
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Q: Category: SICKNESS & HEALTH 
Clue: The initials HMO, which have stood for heart minute output, now also stand for this

A: health maintenance organization
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Q: Category: EVERYBODY TALKS ABOUT IT.... 
Clue: U.S. bomber pilots in World War II discovered this "river" flowing through the upper troposphere

A:
jet stream
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