Circulatory systems facilitate exchange with all body tissues. Gastrovascular cavities
Chapter 23, Problem 23.1(choose chapter or problem)
Circulatory systems facilitate exchange with all body tissues. Gastrovascular cavities function in both digestion and transport. In open circulatory systems, a heart pumps fluid through open-ended vessels to bathe tissue cells directly. In closed circulatory systems, a heart pumps blood, which travels through arteries to capillaries to veins and back to the heart.
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