In Echinodermata,the digestive tract is ..........

  • A
    Absent
  • B
    Complete with mouth on the lower side and anus on the upper side
  • C
    Incomplete
  • D
    Blind sac type

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Which of the following is $NOT$ a characteristic of the phylum Echinodermata?

Absence of excretory organs,high power of regeneration,and exclusively marine; these are the characteristics of the phylum:

The echinoderms are

Absence of excretory organs,great power of regeneration,and exclusively marine animals belong to the phylum:

Segmentation of the body is not represented in

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