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Question
Which of the following classes of animals has coelomic cavity filled with blood?
Which of the following classes of animals has coelomic cavity filled with blood?
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Solution
The correct option is C Arthropoda
A coelom can be defined as a cavity lined by an epithelium derived from mesoderm. Organs formed inside a coelom can freely move, grow, and develop independently of the body wall while fluid cushions and protects them from shocks. The circulatory system of arthropods consists of a heart, a few blood vessels and the blood-filled hemocoel. The coelom is much reduced in arthropods and is usually represented only by small spaces associated with the gonads and excretory system. The body cavity is a hemocoel. It is filled with the blood.
A coelom can be defined as a cavity lined by an epithelium derived from mesoderm. Organs formed inside a coelom can freely move, grow, and develop independently of the body wall while fluid cushions and protects them from shocks. The circulatory system of arthropods consists of a heart, a few blood vessels and the blood-filled hemocoel. The coelom is much reduced in arthropods and is usually represented only by small spaces associated with the gonads and excretory system. The body cavity is a hemocoel. It is filled with the blood.
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