L. Johnson was the president that did the fitness test into the act
Answer:
They learned to salivate at the sound of a bell.
Explanation:
<em>He learned how to make his dog react this way, knowing that he would get food in return, due to the conditioned stimulus, which makes an individual react in a certain way, because that thing is associated to something else. It's like how we train dogs to "sit" and then we give them a treat to do so.</em>
Caffeine can pool minerals from your bone and teeth and that what makes it unhealth
Potential energy comes from a person’s energy the girl is pushing the bicycle down if the girl is not moving the bike won’t move the bike moves when she pushes