How can a disturbance in one trophic level affect the others?

Your answer will be b action plan.

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.

False because when you are going on any water activities it is good to know if the water has any recreational illnesses its false on edgenuity also