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Question

Bilateral symmetry, metameric segmentation, coelom and open circulatory system are the features of:

A
Annelida
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B
Arthropoda
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C
Mollusca
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D
Echinodermata
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Solution

The correct option is C Arthropoda
  • The phylum Arthropoda is the largest and most varied in the animal kingdom. It includes insects, arachnids, myriapods and crustaceans.
  • They have bilateral symmetry as their body can be divided vertically into two mirror images.
  • They have metameric segmentation in which body organs and appendages were serially repeated in each segment.
  • They are eucoelomate (animals with true coelom) with open circulatory systems.
  • Hence, option B is correct.

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