It is stiff rod of special cells surrounded by connecive tissue present in the mid -dorsal region and appears in the embryos of all chordates
Correct answer: B. Notochord
- A. Placenta
- B. Notochord
- C. Cranianta
- D. Ligule
Explanation
The notochord is a flexible supporting rod lying along the mid-dorsal side of chordate embryos and is surrounded by connective tissue. The cranium is a skull structure, whereas the placenta supports exchange between a mother and embryo; students may choose placenta because both occur during development.
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