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Mathematics of traveling waves: For the wave shown in the figure, the frequency is
Gastrovascular Cavity
A central cavity in certain simple animals that functions in both the digestion and distribution of nutrients.
Cnidarians
A phylum of aquatic invertebrates that includes jellyfish, corals, and sea anemones, characterized by a simple body plan with a single opening and cnidocytes for capturing prey.
Hydras
Freshwater organisms belonging to the phylum Cnidaria, known for their simple tubular body and radial symmetry.
Complete Digestive System
A digestive system that has two separate openings for ingestion and egestion, allowing for a one-way flow of food and efficient digestion.
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