تم الإجابة عليه: كيف حلت أجهزة الهضم في الحيوانات مشكلة هضم الطعام

الحل ـ بعض اللافقاريات التي تعتمد على تصفية الماء من الغذاء العالق تقوم بهضم الغذاء داخل الخلايا، واللافقاريات الأخرى لها أجهزة هضم يتم فيها دخول الغذاء والتخلص من الفضلات خلال الفتحة نفسها. معظم اللافقاريات وجميع الفقاريات لها "أنبوب داخل أنبوب" يمتد من الفم إلى الشرج. تتكون الأجهزة الهضمية في الحيوانات من أعضاء وتراكيب تخصصت لتنظيم تغذية الحيوان.

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تم الإجابة عليه: كيف حلت أجهزة الهضم في الحيوانات مشكلة هضم الطعام

أخر المواضيع من قسم : ejabty