Answer: alternative D.
Explanation: The animals that go through this process understand that everytime they drink the unusual-tasting liquid they will be injected, being that a very unpleasant series of events. They are conditioned, therefore, to be afraid of the unpleasantness of this process by associating pain to the actions that are part of it.
Answer:
If a friend, loved one or colleague became ill, you wouldn't hesitate to offer your help and support.
Explanation:
Answer:
between 1,600 and 2,400 calories a day
Answer: To increase arterial pressure you need to increase the cardiac output
Explanation:
Cardiac output is the volume of blood being pumped by the heart in one minute. It is equal to heart rate multiplied by stroke volume.
Two factors affect the strength of the blood: cardiac output and peripheral resistance. Cardiac output is the volume of blood circulated by the heart. Increasing heart rate also results in increased cardiac output, which increases blood pressure.
