(i) They are bilaterally symmetrical, triploblastic, segmented and coelomate animals. |
(ii) The body consists of head, thorax, abdomen and have jointed appendages. |
(iii) Circulatory system is of open type. |
(iv) Excretion takes place through malphigian tubules. |
A) Arthropoda
B) Annelida
C) Mollusca
D) Echinodermata
Correct Answer: A
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