The first example could be about birds hatching, as they have never been taught how to do that, it's just in their nature
As the second example you can include such fact as babies' breathing disability while they are in underwater, this is a nice example
Then you need example of habituation : when something touches turtle's draw it hides, but after the same movements it gets used to it and realizes that it's safe.
Example of sensitization : when boy in class is always poking you and as he continues do that, day after day you become annoyed even if at first it didn't bother you.
Example of imprinting- chiken following their mother.