Dogs Circulatory Systems
Mon, 05 Jan 2009 14:52:39 -0800
Dogs Circulatory Systems January 5th, 2009 Powered By CbproAds Dogs Circulatory Systems Dogs Circulatory Systems Why the heart rate increases during exercise? From the graph it shows that the heart rate of the dog increases during exercise, while the dog is exercising the heart pumps faster getting blood to the moving joints, making the dog breath faster to get the needed oxygen around the body. The dog also gets adrenalin which also makes the heart work harder and making the dog excitabl
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