Answer:
negative reinforcement
Explanation:
i took a test over it in psychology
<span>A torn rotator cuff is the answer</span>
<span>This looks like something I can handle. Hope this helps (:</span>
ANSWER A.Travis’s heart pumps more quickly to allow oxygen to be removed from the air and transported to the tissue.
By he NIH trying a new drug to help reduce pain associated with sickle-cell anemia, it's an example of an "experiment".
An experiment involves a hypothesis (an educated guess as to what's going to happen) and trying out the hypothesis and finding the solution.
