1.

Which of the following is not a characteristic of phylum Chordata?(a) Pharyngeal slits(b) Amniotic egg(c) Post-anal tail(d) Notochord

Answer»

Answer is : (b) Amniotic egg

Presence of amniotic egg is not a characteristic of phylum Chordata. The four features shared by all chordates are presence of a single notochord, a dorsal hollow nerve cord, pharyngeal slits and a post-anal tail. Amniotic eggs are present in reptiles, birds and mammals only.



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