Write four main features of Chondricthyes fishes.
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How Fish Breathe Underwater. All fish have gills present from the time they are born until they die. ...
Fish Are Coldblooded.
Fish Can Detect Nearby Movements.
Swim Bladders Help Fish Sleep.
Fins Propell Fish Through Water. Fins are common to all fish.
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cartilaginous fishes: they are jawed ... One of the primary characteristics present in most sharks is the heterocercal tail,
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