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Do fishes there an open or closed circulatory system? How many chambers does a fish heart have? How does blood flow all through the fish body?
As in every vertebrate the circulatory system of fishes is stopped, i.e., blood flows only within blood vessels.
The fish heart has only two consecutive chambers: a thin-walled atrium and a muscular ventricle. The arterial (oxygenated) blood comes from the gills and gains arteries towards tissues, and then venous blood is collected by veins and reaches the atrium of the heart passing to the ventricle that pumps the venous blood in the direction of the gills to be again oxygenated.
Events after Sperm and Egg Fusion The entry of the sperm into the egg activates the egg. The activation of egg results in two types of responses. (1) The early responses a
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Select all that are true/correct: Stable atoms have no vacancies in their outer shell. Hydrogen is more stable than carbon Helium is more stable than carbon Helium is more stable t
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How I can optimize shake flask culture?
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Minerals and Trace Elements Oxygen, carbon, hydrogen and nitrogen are the most common elements that make up 96% of the total weight of a mammal. The next most abundant element
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