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Invertebrates, Mollusks, Arthropods and Echinoderms
Open Circulatory System
Open circulatory system definition: A system in which blood moves through open spaces as well as vessels.
Related Terms
Antenna
Anus
Arthropod
Bilateral Symmetry
Closed Circulatory System
Cnidarian
Echinoderm
Endoskeleton
Exoskeleton
Insect
Invertebrate
Larva
Lung
Medusa
Metamorphosis
Mollusk
Molting
Polyp
Radial Symmetry
Radula
Tube Feet
Water Vascular System
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