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Invertebrates, Mollusks, Arthropods and Echinoderms
Medusa
Medusa definition: An umbrella-shaped free-swimming organism, like a jellyfish or hydra.
Related Terms
Antenna
Anus
Arthropod
Bilateral Symmetry
Closed Circulatory System
Cnidarian
Echinoderm
Endoskeleton
Exoskeleton
Insect
Invertebrate
Larva
Lung
Metamorphosis
Mollusk
Molting
Open Circulatory System
Polyp
Radial Symmetry
Radula
Tube Feet
Water Vascular System
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