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What is the primary excretory organ in annelids?एनेलिड्स में प्राथमिक उत्सर्जी अंग क्या है?

Nephridia
वृक्कक (Nephridia)
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This question belongs to the set "Biology Revision Set 13 – Animal Diversity (Non-Chordates & Chordates) – Top 100 Oneliner questions". Click below to read detailed notes and attempt the full quiz.

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