How circulation of mammals differ from that of arthropods?
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Explanation:
The first difference between the two animals is that in mammals there is a double circulation. The oxygenated blood from the lungs enters the left ventricle via the left atrium and is then pumped out into the larger body circulation. In a fish the heart only has one atrium and one ventricle.
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THERE IS A DOUBLE CIRCULATION. THE OXYGENATED BLOOD FROM THE LUNGS ENTERS THE LEFT VENTRICLE VIA THE LEFT ATRIUM AND IS THEN PUMPED OUT INTO THE LARGER BODY CIRCULATION. IN A FISH THE HEART ONLY HAS ONE ATHRIUM AND ONE VENTRICLE.
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