افترض ان سمكة وضعت بيوضا في يوم فيه تيارات مائية قوية فكيف يؤثر ذلك في التكاثرها

التفكير الناقد ـ افترض أن سمكة وضعت بيوضا في يوم فيه تيارات مائية قوية فكيف يؤثر ذلك في التكاثرها؟ حل كتاب العلوم خامس ابتدائي فصل اول

الاجابة هي
قد تمنع التيارات المائية وصول الأمشجة المذكرة إلى الأمشة المؤنثة وتخصيبها ومن ثم يمنع حدوث التكاثر

أخر المواضيع من قسم : ejabty

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المساعد

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اخر المواضيع

افترض ان سمكة وضعت بيوضا في يوم فيه تيارات مائية قوية فكيف يؤثر ذلك في التكاثرها

أخر المواضيع من قسم : ejabty