write four distinguish characters of phylum echinodermata fast it's very urgent now
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Adult is radially symmetrical and larvae is bilaterally symmetrical.
Have spiny body and that's why called echinodermata .
Digestive system is complete with mouth on lower side and anus on upper side .
Respiration by respiratory tree or Bursa.
They are deutrostomates .
They have groove like structure on the surface of arm and central disc called as Ambulacral grooves which allows emergence of tube feet for locomotion.
Have well developed regeneration powering arms and viscera , through epimorphosis .
Have spiny body and that's why called echinodermata .
Digestive system is complete with mouth on lower side and anus on upper side .
Respiration by respiratory tree or Bursa.
They are deutrostomates .
They have groove like structure on the surface of arm and central disc called as Ambulacral grooves which allows emergence of tube feet for locomotion.
Have well developed regeneration powering arms and viscera , through epimorphosis .
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