Question

define diploblastic and triploblastic organization

Answer 1

Animals in which the cells are arranged in two embryonic layers, an external ectoderm and an internal endoderm, are called diploblastic animals, example, coelenterates. An undifferentiated layer, mesoglea is present in between the ectoderm and the endoderm (Figure: a).

Those animals in which the developing embryo has a third germinal layer, mesoderm, in between the ectoderm and endoderm, are called triploblasticanimals (platyhelminthes to chordates Figure: b)

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Answer 2

Here is your answer

Animals in which the cells are arranged in two embryonic layers, an external ektoderm and an internal endoderm and called diploblastic animals. Example- coelenterates. An undifferentiated layer, mesoglea is present in between the ektoderm and endoterm

Those animals in which the developing embryo has a third terminal layer, mesoderm in between the ektoderm and endoterm, are called trophoblastic animals.

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