Question

what is the difference between segmentation and metamerism

Answer 1

    hey nikhilstar, this is your answer...............                                                                                                                                           In animals, metamerism is defined as a mesodermal event resulting in serial repetition of unit subdivisions of ectoderm and mesoderm products. Endoderm is not involved in metamerism. Segmentation is not the same concept as metamerism. Segmentation can be confined only to ectodermally derived tissue, e.g., in the Cestoda tapeworms. Metamerism is far more important biologically since it results in metameres, also called somites, that play a critical role in advanced locomotion.

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Answer 2

Difference between true and pseudo metamarism. True metamarism commonly occurs in the , chordates, and the annelids. while pseudo metamarism occurs in the tap worms etc. In pseudo metamarism, segmentation of the ectoderm is the Base of the metamarism in the complete body.