Which of the following is not a chordate character?
A. Presence of paired pharyngeal gill slits
B. Ventral heart
C. Solid and ventral nerve cord
D. Presence of post-anal tail
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Correct Answer : C.
The chordate is the phylum which includes humans and other vertebrates. However, not all chordates are vertebrates. All chordates have the following features at some point in their life (in the case of humans and many other vertebrates, these features may only be present in the embryo): Pharyngeal slits, Dorsal nerve cord, Notochord, Post-anal tail.