5. Cytokines are of critical importance for communication. Indicate a role for the following cytokines during an infection and which cells can produce that cytokine: IFN a/b, IFN-g, TNF-a, IL-12, IL-6 and IL-10. Based on what you find, can you briefly comment on how cells interact together to produce this cytokine network.

Gives full presentation to observe

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.