_______ are the first group of invertebrates which have d... — Answer & Explanation | PrepBeePakistan

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HomeMCQsBiology

MEDIUMENGLISHBiology

_______ are the first group of invertebrates which have developed a closed circulatory system.

Correct answer: B

Explanation

Annelids are among the first invertebrate groups known to possess a closed circulatory system.

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