Title: Ashkenazi Jews.
Question: The lack of assimilation of Jews in central and eastern Europe lies in part to the fact that they lived almost exclusively in what?

Title: Buckingham Palace.
Question: When did Prince Albert die?

Title: Strasbourg.
Question: What was established around the city?

Title: Circadian rhythm.
Question:
By better using resources, how does that improve an organism's chances of surviving?