The measure of how well your heart gets oxygen rich blood to your muscle while you're exercising is called anaerobic fitness is the correct answer.
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The reason why ethics differs when we're talking about people, companies, nations is that all of these have interests which may differ. What happens then with differing interests is that it also lead to different moral and value systems which again in turn lead to different ethics. Most usually, the actual source why ethics differ is either due to the interests or wishes of a particular social group mentioned here.
Speak your mind but never rudely look for a different approach.
