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.
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Question: Category: -OLOGIES 
Clue: From the Greek for "growing in", it studies the development of organisms in their earliest stages before birth

Answer: embryology


Question: Category: THE BRITISH ISLES 
Clue: This island group that lies just north of the Scottish mainland was known to classical writers as the Orcades

Answer: the orkney islands


Question: Category: THE MOVIES 
Clue: "Key Largo" was the last film he made with his fourth wife, Lauren Bacall

Answer:
humphrey bogart