Which of the following characters does not belong to Arthropoda?

Closed circulatory system

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Movable jaws

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Segmented body

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Jointed legs

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Solution

The correct option is A Closed circulatory system
Arthropods are invertebrates having an exoskeleton, a segmented body, jointed appendages and movable jaws.
Their primary internal cavity is haemocoel, which accommodates their internal organs and through which their haemolymph circulates. So, they have open circulatory system.
Therefore, the correct answer is option A.

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