Examlex
Most of the hydrogen ion excreted in the urine is bound to bicarbonate ion.
Tentacle
Flexible, often elongated appendages found in some animals, like octopuses and jellyfish, used for sensation, locomotion, and feeding.
Cnidarians
Cnidarians are a phylum of aquatic invertebrates that include jellyfish, corals, and sea anemones, characterized by a simple body plan with a mouth surrounded by tentacles.
Gills
Respiratory organs found in many aquatic organisms, used for the exchange of gases (oxygen and carbon dioxide) with the water.
Bivalves
Bivalves are a class of marine and freshwater mollusks that have bodies enclosed by a shell consisting of two hinged parts.
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