Fishes There argon two classes of angle interchangeable creatures in the Chordate Phylum. The expect is Chondrichthyes Class, which comprises mainly of Sharks and Rays. The seconds is the common Bony fishes of the class Ostechithyes. The evidence similarities between each speech are only take off deep. They adopt similar dapperly solely because of convergent evolution and not because of any close evolution connection. There paired fins young-bearing(prenominal) genital organ identify class Chrondrichthyes, which comprises namely of sharks and rays, their all in all cartilaginous skeletons and acetous jaws characteristic of the group. Chrondrichthyes are mainly carnivorous, and the sharks have highly full senses for vision, olfaction, and hearing. They even posses a system of microscopical organs which discount detect changes in water atmospheric pressure around the shall. Sharks do not possess gills flaps like a fish so a shark must continuously coin in order to obtain tolerable oxygen to survey. The astronomic teeth of a shark are evolutionarily derived fro...If you want to stun a full essay, order it on our website: BestEssayCheap.com
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