Subphylum Vertebrata


 
 
Concept Explanation
 

Subphylum Vertebrata

Subphylum Vertebrata: All vertebrates have a vertebral column. They have a complex nervous system including a brain enclosed in a cranium (brain box). This is why they are also called craniates. They are divided into seven classes.

  • Mammals
  • Birds
  • Reptiles
  • Amphibians 
  • Bony fishes
  • Cartilaginous fishes 
  • Jawless fishes
  • Characteristics of Vertebrates:  A vertebrate is an animal that has all of the following characteristic features:

  • A stiff rod running through the length of the animal(it could be either be the vertebral column or notochord)
  • Humans and all other vertebrates posses a notochord as an embryo and it eventually develops into the vertebral column.
  • A bundle of nerves run above the vertebaral coumn(spinal cord) and the alimentary  caanal exists below it.
  • The mouth is present at the anterior portion of the animals or right below it.
  • The alimentary canal ends in the anus, which opens to the exterior. The tail extends after the anus. 
  • Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    Which of the following is not a characteristic feature of vertebrates?

    Right Option : D
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    Explanation
    Question : 2

    Vertebrates that have four chambered heart and whose body is covered with the hair is the member of ______________ phylum.

    Right Option : A
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    Explanation
    Question : 3

    Which of the following are the most developed animals ?

    Right Option : D
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    Explanation
     
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