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Question

Write down four characters of Chordata.


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Solution

Chordata:

  1. Phylum Chordata belongs to the Kingdom Animalia and includes all the vertebrates, i.e., animals with a backbone, and several invertebrates, i.e., organisms without a backbone.
  2. They possess a bilaterally symmetrical body and are divided into three different sub-phyla.
  3. The four main characteristics of chordates are- a notochord, a dorsal hollow nerve cord and pharyngeal gill slits in pair, and also a post-anal tail.
  4. they are the bilaterally symmetrical, triploblastic, coelomic, and segmented body.
  5. The body design is complex and well-differentiated.
  6. The body has an organ system level of organization.
  7. Phylum Chordata is divided into- Urochordata, Cephalochordata, and Vertebrata.

Examples:

  1. Ascidia, Salpa, Doliolum – Urochordata
  2. Branchiostoma – Cephalochordata
  3. Lizards, fish, frogs, turtles, humans, parrots, elephants, gorillas – Vertebrata


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Phylum Chordata
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