لإضافةl: 11th September 2009 اضيف بواسطة:Semanoor15 المشاهدات: 515 تعليقات:0
Painting of Pacific little pocket mouse (Perognathus longimembris) Little Pocket Mice can inhabit some of the driest and least vegetated parts of North America. They are abundant in deserts of the southwestern United States and northwestern Mexico, and readily inhabit coastal sage, shrub-steppe,...
لإضافةl: 30th September 2009 اضيف بواسطة:Semanoor15 المشاهدات: 371 تعليقات:0
Painting of Transpiration-Coeshion Hypothesis:Water moves from roots to leaves in the xylem. The upward movement is explained by the transpiration-cohesion hypothesis. Water moves upward in a continuous column, linked by hydrogen bonds and pulled by evaporation from the leaves.