Answer:
True.
Explanation:
Fight or Flight response are mainly generated at the time of anger, fear and stress. The sympathetic nervous system of the brain manages the body at the time of natural stress.
The individual to perform well in the high pressure situation is suffering from the natural stress. The response of the body is to release extra hormones to manage this situation.
Thus, the answer is option (a).
<h3>the correct answer is glucose</h3>
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Answer:Valves stop blood flowing backwards
Explanation: Valve are flags of tissue that control the direction of the blood in our heart.,it prevent the backwards flow of blood. valves regulate blood from flowing back into the atria.The right and left atrio-ventricular valves prevent blood from flowing backwards into atria. When the ventricle is full,the valve prevent backwards flow of blood.
In oxidation, oxygen is needed to create a chemical reaction.
