write detail note on triploblastic organization?
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Answer:
Animals in which the developing embryo has three germinal layers are called triploblastic animals and consists of outer ectoderm (skin, hair, neuron, nail, teeth, etc), inner endoderm (gut, lung, liver) and middle mesoderm (muscle, bone, heart). Most of the triploblastic animals show organ system level of organisation (Flat worms to Chords)
Answer:
Cell organization is one of the characteristic feature which helps in classifying animals. Based on the cell organization, organisms can be diploblastic or triploblastic. Triploblastic organization is represented by embryos possessing three germinal layers namely external ectoderm, middle mesoderm and inner endoderm. 4.1.3 Diploblastic and Triploblastic Organisation
February 21, 2019 admin
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.
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 triploblastic animals (platyhelminthes to chordates, Figure b).
e.g. Members of platyhelminthes represent triploblastic organization. Organs and organ systems of the individuals are derived from these three germinal layers.
Explanation: Cell organization is one of the characteristic feature which helps in classifying animals. Based on the cell organization, organisms can be diploblastic or triploblastic. Triploblastic organization is represented by embryos possessing three germinal layers namely external ectoderm, middle mesoderm and inner endoderm