A hollow ball of cells with a central fluid-filled cavity is
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Birds have hollow bones to reduce weight, known asभार कम करने के लिए पक्षियों की हड्डियां खोखली होती हैं, जिन्हें क्या कहा जाता है?
Pneumatic bones
वातिल अस्थियां (Pneumatic bones)
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This question belongs to the set "Top 100 Zoology Questions: Animal Kingdom and Developmental Biology". Click below to read detailed notes and attempt the full quiz.
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