A) Echinodermata and Annelida
B) Annelida and Arthropoda
C) Mollusca and Chordata
D) Platyhelminthes and Arthropoda
Correct Answer: B
Solution :
Metameric segmentation means the body is divided externally as well as internally. This characteristic is present in Annelida (e.g., earthworm) and arthropoda (e.g., cockroach). Their body is divided externally and internally as well. Hence, the correct option is (b).
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