1.

Distinguish between Diploblastic animals and triploblastic animals.

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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