Examlex
Which earlier structure was used as a source of architectural pieces to build the Mezquita of Córdoba?
Vertebrate Classes
Categories within the subphylum Vertebrata, distinguishing animals based on key features like presence of a backbone, including mammals, birds, reptiles, amphibians, and fish.
Cartilaginous Skeleton
A type of skeleton found in certain animals where the principal structural component is cartilage, rather than bone.
Paired Fins
Appendages found on fish that are used for stabilization, steering, and propulsion through the water.
Chondrichthyes
The class of cartilaginous fishes that includes the sharks, rays, and skates.
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