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characteristics of coelenterata

Asked by 5th March 2013, 7:18 PM
Answered by Expert
Answer:
  1. Aquatic, mostly marine; either solitary or colonial
  2. Multicellular, dipoblastic animals (outer layer -ectoderm and inner layer – endoderm).
  3. Contains body cavity known as the coelenteron which has mouth surrounded by tentacles, but lacks anus.
  4. Radial symmetry
  5. Possess specialised cells called cnidoblasts bearing nematocysts which are the stinging cell organelles.
  6. Primitive nervous system; no respiratory or circulatory organs.
  7. Body shows 2 main forms - the tubular sessile polyp forms and swimming medusa
  8. Shows asexual reproduction by budding and also sexual reproduction.
Answered by Expert 6th March 2013, 8:03 AM
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