Jake is trying to teach his dog peach how to roll over. he first gives peach a treat whenever peach sits. next, he no longer rewards peach for sitting but rather gives peach a treat when the dog actually lies down. finally, jake rewards peach only when the dog rolls over. jake is using to train peach to roll over.

Ascientist successfully predicts the outcome of an experiment. you watch carefully and know he didn't cheat. the scientist's success shows that: a) the scientist knows absolute truth about this experiment; success is not possible unless you know the truthb) the scientist was just lucky; no one ever knows what's going on, so successful predictions require luckc) the scientist may know the truth, or at least know something that is close to the truth, or the scientist may have gotten lucky this time; you can't be absolutely sured) the scientist really was cheating, even though you didn't see the cheating; no one can get things right, except by cheatinge) the scientist spent the night at a particular hotel chain and go a free breakfast, giving the scientist the ability to do amazing things

How have people adapted physically to different environments? why do you think these differences developed?

Which feature of greece’s geography explains the ancient greeks’ need for trade? a. the mountainous landscape b. the dry summer climate c. the location along the seacoast d. the location along the boundary between asia and europe.