Elizabeth is 90 years of age. compared to when she was 30 years of age, her now. cells require more energy arteries are less flexible stomach secretes more intrinsic factor skin is more elastic

Iwolud you, but i dont know what you are asking.

By water evaporation from the leaves is created a negative pressure at the top of the tree that promotes the ascension  of the water through channels that are called xylem. there are also two molecule forces that are involved: the intra-water molecules cohesion (water molecules stick to each other) and the adhesion when the water molecules stick to the channels they are running in. this is what enables water to go from the roots to the top of a tall tree.