Answer:
A undercarriage with four or six wheels at the end of a railroad car
Explanation:
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Answer: In order to compensate for the low partial pressure of oxygen at altitude, the human body undergoes a number of physiological changes. A vital component in this process is the increase in the concentration of circulating haemoglobin. The role of HIF‐1α, erythropoietin and red blood cells in this acclimatisation process is described, together with the fall in plasma volume that increases the concentration of haemoglobin in the early stages of hypoxic exposure.
Explanation:
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Answer:
<em>positive stress : </em>
<em></em>
<em>- planning a vacation</em>
<em>- meeting your idol</em>
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negative stress :
<em>- job insecurity</em>
<em>- team conflicts</em>
<em>- failing an exam</em>
