Answer:
a cartilaginous skeletal rod supporting the body in all embryonic and some adult chordate animals
Explanation:
thanks
this answer may help you out
its just a skeletal rod.
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Answers & Comments
Answer:
a cartilaginous skeletal rod supporting the body in all embryonic and some adult chordate animals
Explanation:
thanks
Answer:
this answer may help you out
Explanation:
its just a skeletal rod.