Question
एम्नियोटों में अंतःप्रवेशी अंग
Answer :
Word Count : 283
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एम्नियोटों में अंतःप्रवेशी अंग भ्रूणीय विकास के दौरान बनने वाली वे अतिरिक्त भ्रूणीय संरचनाएँ हैं जो भ्रूण को स्थलीय वातावरण में सुरक्षित रूप से विकसित होने में सहायता करती हैं। एम्नियोटों में सरीसृप, पक्षी और स्तनधारी शामिल होते हैं, जिनमें भ्रूण का विकास जल पर निर्भर न रहकर अंडे या गर्भ के भीतर होता है। इन जीवों में चार प्रमुख अंतःप्रवेशी अंग पाए जाते हैं—एम्नियन, कोरियन, ऐलैंटोइस और योक सैक। एम्नियन
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