Answer:
Sympathetic nervous system
Explanation:
Under stress conditions, the sympathetic division of the autonomic nervous system prepares the body by exhibiting flight or fight response. It includes some physiological changes in the body during stress conditions such as before and during exams.
Some of the physiological responses of the sympathetic nervous system are rapidly pounding, dilated pupils of eyes, deep breathing, dry mouth, and sweaty skin. It also shunts the blood circulation towards active skeletal and cardiac muscles. Dilation of bronchioles to increase ventilation to facilitate the delivery of more oxygen to the body cell is another change stimulated by the sympathetic nervous system. Therefore, the mentioned responses are due to the activation of the sympathetic nervous system of the student since he is in the stress of the exam.
Answer: 1 is a, 2 is b, 3 is c, and 4 is d.
Explanation:
it is the force with which a body is attracted toward Earth or another celestial body. This means that when you are in space, away from Earth, objects do not weight anything since they do not feel gravitational attraction to the Earth. Objects can have a large mass, but weigh nothing.
<span>Hemoglobin
is the part of the red blood cell that carries oxygen, and so important for
thriving. In the case of Brian, having 10.4 g/dL hemoglobin is very low. Normal
values for hemoglobin in males range from 13.5 to 17.5 g/dL. The patient has
very serious anema and note he is just 15 months old, and so needs immediate
doctor’s attention. The doctor is likely to order a blood transfusion to
elevate hemoglobin levels and stabilize the patient before ordering tests to
determine cause of anemia.</span>
