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Segmentation

Segmentation ...

Question

Segmentation in thebody is first observed in which of the following:
(a) Platyhelminthes (b) Aschelminthes(c) Annelida (d) Arthropoda

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Solution

The body segmentation first appeared inthe phylum, Annelida (annulus meaning little ring).

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Question 7
In which group of animals, coelom is filled with blood?

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(b) Annelida
(c) Nematoda
(d) Echinodermata

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