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Kingdom Animalia — Bio Zoology STD 11 — Question

Tamilnadu BoardEnglish MediumSTD 11Bio ZoologyKingdom Animalia3 Marks
Question
Distinguish between Diploblastic animals and triploblastic animals.
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Answer

Diploblastic animals:
  • The animals in which the cells are arranged in two embryonic layers, the ectoderm and endoderm are called diploblastic animals.
  • These are lower organisms, e.g. Cnidaria and ctenophora
Triploblastic animals:
  • The animals in which the cells are arranged in three embryonic layers, the ectoderm, mesoderm and endoderm are called triploblastic animals.
  • These are higher organisms, e.g. Platyhelminthes to Mammalia.

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