Katie attached a bell to the lid of her dog's food container so it rang every time the lid was lifted, which alerted her dog to come eat. one day, katie removed the bell from the container and hung it on a closet door. after a month, during which her dog ran to the closet door and was not fed, he stopped responding to the sound of the bell. not responding to the bell anymore is an example of:

Though most presidents have claimed affiliation with a christian church, the only roman catholic president has been a) abraham lincoln. b) john f. kennedy. c) george washington. d) franklin d. roosevelt.

1. how did conditions in germany and europe at the end of world war i contribute to the rise and triumph of nazism in germany? 2. how did the german government under nazi rule build support among the german people? 3. how did nazi germany gradually isolate, segregate, impoverish, and incarcerate jews and persecute other perceived enemies of the state between 1933 and 1939? 4. how did the nazis lead germany to war in europe and, with their collaborators, kill millions—including systematically murdering six million jewish people? 5. why is learning about the holocaust important? so we don’t repeat history.

What are the most populous and least populous areas of russia? and why are some areas more heavily populated than others?