Examlex
The color of a mineral's powder is called its ______________.
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.
Lungs
Main organs of the respiratory system, involved in the exchange of oxygen from the atmosphere with carbon dioxide from the blood.
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