A farmer wanted to prevent wolves from attacking his sheep b…

A farmer wanted to prevent wolves from attacking his sheep but did not want to kill the wolves.  He decided to put out some sheep meat laced with a chemical that would make the wolves ill when they ate it.  The wolves tried the meat a few times and then eventually avoided the meat as well as the live sheep.  In this example of classical conditioning, the unconditioned stimulus to produce aversion of eating sheep is the:

  Sally has to pay for her trash by weight but does not have…

  Sally has to pay for her trash by weight but does not have to pay for any recycling she produces. As a result, she recycles everything she can.  When she is at her office, she also recycles paper, although nobody there keeps track or employs a penalty for not doing so.  Thus, her paper recycling is likely because of _____________ (in behavioral terms).