Biology MCQ: It is stiff rod of special cells surrounded by connective tissue present in the mid-dorsal region and appears in the embryos of all chordates.

It is stiff rod of special cells surrounded by connective tissue present in the mid-dorsal region and appears in the embryos of all chordates.

Correct Answer: Notochord

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Biology MCQ: It is stiff rod of special cells surrounded by connective tissue present in the mid-dorsal region and appears in the embryos of all chordates. | Extra Education