In which of the following is true metamerism | vedclass

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(C) True metamerism,or metameric segmentation,is a characteristic feature where the body is externally and internally divided into segments with a ser

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Annelida

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(C) True metamerism,or metameric segmentation,is a characteristic feature where the body is externally and internally divided into segments with a serial repetition of at least some organs.This phenomenon is first observed in the phylum $Annelida$ (e.g.,earthworms).While $Arthropoda$ (like the cockroach) also exhibit metamerism,it is considered a derived condition from the ancestral state first seen in $Annelida$.$Platyhelminthes$ are acoelomate and do not show true metamerism.

In which of the following is true metamerism first observed?

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