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Do crawfish have gills?

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The main function of the circulatory system of a crayfish is to transport oxygen from the gills to all cells, while at the same time it collects carbon dioxide that is later eliminated in the gills. Like other crustaceans, crayfish have closed circulatory systems, which means that the blood circulates inside vessels. read more

Right—like all crustaceans, crawfish have gills that are anatomically branches of the legs. read more

A crayfish has a gill at the base of each leg. These gills are very delicate and are covered by the crayfish's carapace, or shield. This carapace is aligned backwards from the head, allowing water to run through in a channel over the gills, which provides a continuous source of oxygen that allows the crayfish to breathe. read more

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