In chordates,the __________ is a dorsal rod,with a sheath of connective tissue,functioning in support.

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The notochord is a defining feature of chordates and is a cylindrical, flexible rod of cells that extends along the dorsal axis of the body. The notochord functions as a support structure and provides attachment sites for muscles. In some chordates, such as invertebrate chordates, the notochord persists throughout life. In vertebrates, it is replaced by a more complex structure, the spinal column or backbone.

In Chordates,the __________ Is a Dorsal Rod,with a Sheath of Connective