A) Gills
B) Spiracles
C) Postanal tail
D) Chitinous exoskeleton
Correct Answer: C
Solution :
Chordates are featured by the presence of the following: (i) Dorsal hollow tubular nerve cord (ii) Notochord (cephalic or head reaction) (iii) Pharyngeal Gill slits (iv) Postanal tail Hence, the correct option is [c].You need to login to perform this action.
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