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निम्न कथनों पर विचार करेंकथन(A): कुछ अकशेरुकी प्राणियों का रक्त नीला होता है। कारण (R): उनमें एक कॉपर युक्त तत्व हीमोसायनिन पाया जाता है। इनमें से सही उत्तर चुने-

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निम्न कथनों पर विचार करेंकथन<br />(A): कुछ अकशेरुकी प्राणियों का रक्त नीला होता है। कारण (R): उनमें एक कॉपर युक्त तत्व हीमोसायनिन पाया जाता है। इनमें से सही उत्तर चुने-






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