Why Fishes, Amphibians, And Reptiles Belong To Phylum Chordata
Main Classes Of Chordates – Amphibians- Reptiles -Mammals- Birds -Fish
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Why Are Fish Part Of The Phylum Chordata?
Why do fish fall under the phylum Chordata? Fish are categorized as cold-blooded animals and are classified within the class Chondrichthyes, which is a subset of the larger phylum Chordata. One key characteristic that places fish within this phylum is the presence of an endoskeleton, signifying the existence of an internal skeleton within the organism’s body. This internal framework provides support and structure, aiding fish in their diverse aquatic lifestyles.
Why Are All These Animals Regarded As Chordates?
What makes animals classified as chordates? Chordates share a common set of five distinctive physical characteristics, known as synapomorphies, which differentiate them from other animal groups. These five defining features are: a notochord, a hollow dorsal nerve cord, an endostyle or thyroid gland, pharyngeal slits, and a post-anal tail. These characteristics are present at some point during their larval or adult stages, providing a clear basis for their classification as chordates.
Update 11 Why fishes amphibians and reptiles are included in phylum Chordata
Categories: Top 72 Why Fishes Amphibians And Reptiles Are Included In Phylum Chordata
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6 Phylum Classes comprising animals like fishes, amphibians, reptiles, birds along with mammals constitute the next higher category called Phylum. All these, based on the common features like presence or notochord and dorsal hollow neural system, are included in phylum Chordata.Answer and Explanation: Fishes are referred to as cold-blooded animals that belong to the class Chondrichthyes of the phylum Chordata. Fishes possess an endoskeleton, which indicates the presence of an internal skeleton inside the living organism’s body.All chordates possess, at some point during their larval or adult stages, five distinctive physical characteristics (synapomorphies) that distinguish them from other taxa. These five synapomorphies are a notochord, a hollow dorsal nerve cord, an endostyle or thyroid, pharyngeal slits, and a post-anal tail.
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