Which of these is a characteristic feature of vertebrates?

Options :
  1. notochord (at least in the embryo)
  2. pharynx with pouches or slits in wall (at least in the embryo)
  3. dorsal, hollow nervous system
  4. All of the above
Answer and Explanation :-

Answer: Option 4

Explanation:

All of the above. Apart from having notochord, dorsal hollow nervous system and pharynx with pouches or slits in walls (at least in the embryonic life), the characteristic feature of the vertebrates is the vertebrate column.

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By: Anandita jha On: Apr/02/2015

Being touched with study is life.

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Hope is the thing with feathersThat perches in the soul,And sings the tune without the words,And never stops at all,And sweetest in the gale is heard And sore must be the stormThat could abash the little birdThat kept so many warm.I've heard it in the chilliest landAnd on the strangest sea Yet, never, in extremity,It asked a crumb of me.
-Emily Dickinson The Complete Poems