D<span>eer Hunting's Future is Tough to <span>Predict</span></span>
Sorry for the other guy. He was rude. Here's the answer:
Animals excrete CO2 by cellular respiration. Since any living things besides plants can't break down CO2, it just gets put back into the environment. I hope I helped you :)
Answer:
D. increased blood glucose, decreased GI peristalsis, and increased heart rate and blood pressure
Explanation:
Activation of the sympathetic division under any emergency or stress conditions results in a series of physiological responses collectively referred to as flight or fight response.
The sympathetic nervous system causes an increase in heart rate and blood pressure. Increased pumping of blood through the heart ensures enough supply of oxygen to muscles required to produce the desired responses.
It also causes constriction of blood vessels that supply gastrointestinal tract and reduced muscular activities of smooth muscles of GI trait. The result is reduced blood flow through these tissues, reduced peristalsis and slowing of digestive activities, which are not required during exercise. The sympathetic nervous system also triggers the release of glucose by the liver increases blood glucose level.
Not all inspired air reaches the alveoli; 150 ml is stopped in the airway leading to the alveoli. This is called dead air space.
Alveoli are the tiny air sacs present all over the lungs. These are supposed to increase the surface area of the lungs so as to increase the amount of inhaled air. The exchange of oxygen and carbon dioxide takes place through these alveoli.
Dead air space is the unventilated area where air circulation does not take place. This air is supposed to be get trapped somewhere in the respiratory pathway or it reaches an alveoli that is poorly perfused. The dead air space can be of two types: anatomical dead space and physiologic dead space.
To know more about dead air space, here
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