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PART - 1 - Unit I : CH - 4 Animal Kingdom — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYPART - 1 - Unit I : CH - 4 Animal Kingdom2 Marks
Question
What is meant by triploblastic and diploblastic? Give one example from both the groups.
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Answer

Triploblastic : Those animals in which the developing embryo has a third germinal layer, mesoderm, in between the ectoderm and endoderm, are called triploblastic animals (platyhelminthes to chordates).
Diploblastic: Animals in which the cells are arranged in two embryonic layers, an external ectoderm and an internal endoderm, are called diploblastic animals, e.g.. coelenterates.

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