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Question
The unsegmented animals belong to the phyla
The unsegmented animals belong to the phyla
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Solution
The correct option is C Aschelminthes and Mollusca
The body segmentation is a characteristic of phyla Annelida, Arthropoda and Chordata. Segmentation is both external and internal in Annelida and Arthropoda with linear repetition of some organs. This type of segmentation is called metamerism.
The animals of phylum Chordata have only internal segmentation which is quite evident in the embryonic stages.
The animals of Mollusca and Aschelminthes do not exhibit body segmentation.
The body segmentation is a characteristic of phyla Annelida, Arthropoda and Chordata. Segmentation is both external and internal in Annelida and Arthropoda with linear repetition of some organs. This type of segmentation is called metamerism.
The animals of phylum Chordata have only internal segmentation which is quite evident in the embryonic stages.
The animals of Mollusca and Aschelminthes do not exhibit body segmentation.
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