Bilateral symmetry, a segmented body, presence of coelom, and open circulatory system are features of which of the following phyla?
A
Annelida
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B
Mollusca
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C
Arthropoda
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D
Echinodermata
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Solution
The correct option is A Arthropoda Arthropods show various body shapes with bilateral symmetry. Their body is segmented. They have true coelom and are hence called coelomates. In arthropods, blood vascular/circulatory system is of open type and so the blood does not flow in well-defined blood vessels.