What are the two divisions of the autonomic nervous system? A. sympathetic and central nervous systems
B. central and somatic nervous systems
C. sympathetic and parasympathetic nervous systems
D. parasympathetic and somatic nervous systems

They include lobsters and crabs

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.