SCIENCE
CIRCULATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Annelids
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Echinoderms
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Arthropods
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All the above
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Detailed explanation-1: -An open circulatory system, found in arthropods, pumps blood into a cavity called a hemocoel where it surrounds the organs and then returns to the heart(s) through ostia (openings). The blood found in arthropods, a mix of blood and interstitial fluid, is called hemolymph.
Detailed explanation-2: -The open circulatory system, on the other hand, is most commonly seen in invertebrates such as cockroaches and crabs. The hemolymph directly bathes the organs and tissues.
Detailed explanation-3: -Updated On: 27-06-2022. In Arthopods blood vessels are absent, sinuses are present. So they have open circulatory system.
Detailed explanation-4: -Annelida and Coelenterata have closed circulatory systems whereas Arthropods and Mollusca have an open circulatory system.