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प्रश्न
In which group of animals, coelom is filled with blood?
विकल्प
Arthropoda
Annelida
Nematoda
Echinodermata
उत्तर
Arthropoda
Explanation -
Due to the presence of open circulatory system in the Phyla Arthropoda and Mollusca, the coelomic cavity (or coelom) is filled with blood and is referred to as hemocoel.
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