WebClass: Chondrichthyes: Skeleton: Cartilaginous; Scales: Placoid/Dermal denticles for protection and streamlining, paired fins, heart with its chambers in series . Subclass: Elasmobranchii: Operculum absent, spiral valve in intestine, five to seven pairs of gill clefts opening individually to the exterior, rigid dorsal fins . Order: Selachii: WebChondrichthyes sharks swim by moving their heads and tails from side to side in the water. ... Chondrichthyes are jawed vertebrates with paired fins, paired nostril openings, scales, and a heart with its chambers in series. Chondrichthyans, for the most part, have tough skin covered with dermal teeth. ... The oxygen is used in the body and goes ...
How many heart chambers do chondrichthyes have? - Answers
WebAmphibia. Reptilia. Aves. Mammalia. Three of the vertebrate classes are fish. The most primitive of these is Agnatha . It consists of jawless fish that do not have scale s. These are the lampreys and hagfish. Fish that have skeletons consisting of hard rubber-like cartilage rather than bone are members of the class Chondrichthyes . WebChondrichthyes are jawed vertebrates with paired fins, paired nares, scales, and a heart with its chambers in series. The class is divided into two subclasses: Elasmobranchii (sharks, rays, skates, and sawfish) and Holocephali (chimaeras, sometimes called ghost sharks, which are sometimes separated into their own class). haikyuu sounds
Gnathostomata - Wikipedia
WebHow many heart chambers do members of the class Chondrichthyes have? Parts of Hearts: Despite the number of chambers in the heart, there are only two types of … WebChondrichthyes (/kɒnˈdrɪkθiiːz/; from Greek χονδρ- chondr- 'cartilage', ἰχθύς ichthys 'fish') is a class that contains the cartilaginous fishes: they are jawed vertebrates with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone. The class is divided into two subclasses: Elasmobranchii (sharks, rays, … WebChondrichthyes 'cartilage', and ἰχθύς 'fish') is a class that contains the cartilaginous fishes that have skeletons primarily composed of cartilage. They can be contrasted with the Osteichthyes or bony fishes, which have skeletons primarily composed of bone tissue. Chondrichthyes are jawed vertebrates with paired fins, paired nares, scales, and a … haikyuu ss1 netflix