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Question

Blood vascular system of earthworm is of

A
Open type
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B
Closed type
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C
Portal type
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D
None of these
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Solution

The correct option is C Closed type
The earthworm belongs to class Annelida. It has closed circulatory system. The blood runs in closed vessels known as arteries and veins and returns back to the heart. In this type of system, blood is pumped by a heart through vessels and does not normally fill body cavities.
Therefore, the correct answer is option B.

383336_368075_ans_afc80112ac794c67bf84e13eccc8e487.PNG

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