Transpiration utilizes a pull that is
relayed downward along a string of water molecules held together by cohesion
and helped upward by adhesion. A plant's xylem tissue is enhanced to use
outside forces to move water and dissolved materials from its roots to its
shoots.
Enzymes are not destroyed or altered in chemical reactions therefore can be used more that once.
I think they area as a result of a rapid gastric emptying and creation of high osmotic gradient in the small intestine that causes a sudden shift of fluid from the blood vessels to the intestinal lumen. Gastrectomy is the removal of part or all of the stomach. A partial gastrectomy involves the removal of a part of the stomach, the lower half is removed mostly, while full gastrectomy involves the removal of the entire stomach.