Why is research and work with exotic animals important? what benefits can be gained from studying and learning about exotic animals?

Xotic animal clinics deal with exotic animals (animals from different lands or extreme conditions), whereas traditional animal clinics deal with household pets, which are usually domestic. You have to determine your preference. 

Work with exotic animals is important because their natural habitats are declining, which puts them at risk of being endangered. Better knowledge of these animals may help you to find solutions for their health.

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.