Fishes There are two classes of anglelike creatures in the Chordate Phylum. The front is Chondrichthyes Class, which comprises mainly of Sharks and Rays. The seconds is the common Bony fishes of the class Ostechithyes. The manifest similarities between each speech are only uncase deep. They have similar dapperly solely because of convergent evolution and not because of any close evolution connection. There paired fins female genital organ identify class Chrondrichthyes, which comprises namely of sharks and rays, their completely 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 microscopic organs which discount detect changes in water pressure around the shall. Sharks do not possess gills flaps like a fish so a shark must continuously coin in order to obtain enough 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:
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