Which one of the following features is found in chordates but not in non-chordates?

  • A
    Gills
  • B
    Spiracles
  • C
    Post-anal tail
  • D
    Chitinous exoskeleton

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Which of the following animals possesses a post-anal tail?

Which of the following cannot be considered a characteristic of non-chordates?

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Which set of terms would most likely be used in a description of the nervous system of chordates?

Enterocoelous coelom is found in

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