Which component of a change and configuration management policy specifies options for reverting a system back to the state it was in before a change was made?

Sam and ben have discovered some strange animals living in the woods behind their house. ben is excited because he believes they are marsupials, an animal he's never observed in the wild before. his brother is sure it is not. what feature should the boys consider in deciding whether the animals are marsupials?

In piaget's stage, you would expect one to develop interest in ethics, politics, and social and moral issues.

What is generally true of the lower house in a state legislative branch ?