EVERYDAY SCIENCE

Detailed explanation-1: -Arthropods possess an open circulatory system consisting of a dorsal heart and a system of arteries that may be very limited (as in insects) or extensive (as in crabs). The arteries deliver blood into tissue spaces (hemocoels), from which it eventually drains back to a large pericardial sinus surrounding the heart.

Detailed explanation-2: -Annelida and Coelenterata have closed circulatory systems whereas Arthropods and Mollusca have an open circulatory system.

Detailed explanation-3: -What type of circulatory system do arthropods have? The arthropod circulatory system is known as an open circulatory system. Open circulatory systems have blood or hemolymph that circulates freely throughout the body cavity and is not contained in arteries or vessels like a closed system.

Detailed explanation-4: -Which organism has an open circulatory system? Insects have an open circulatory system. Unlike humans, the blood in insects flows freely throughout the body.