How is the large size of some cephalopods related to the type of circulatory system they present?
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How is the large size of some cephalopods related to the type of circulatory system they present?
How is the large size of some cephalopods related to the type of circulatory system they present?
In cephalopods the circulatory system is closed and this provides more speed and pressure for the blood circulation allowing the existence of species with large bodies, like octopuses and giant squids.