What are the 7 characteristics of a chordate?
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1. Notochord
It is a longitudinal , cartilaginous rod running between the nerve cord and the digestive tract .
2. Dorsal Nerve Cord
It is a bundle of nerves running along the “back” and splits into the brain and the spinal cord . It is hollow and lies dorsal to the notochord .
3. Pharyngeal Slits
They are the openings which allow the entry of water through the mouth without entering the digestive system .
4. Post anal Tail
It is an extension of the body to the anus. In chordates , the tail is composed of skeletal muscles which help in locomotion in fish-like species .
5. Bilaterally symmetrical, triploblastic, coelomic and segmented body
6. The body design is complex and well-differentiated
7. The body has an organ system level of organization
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