Sewing thread is very thin and difficult to see once a length of thread is removed from its spool. How is the thread and spool an analogy for what happened to the DNA in Step 7.

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.

True but only in the south coastal areas during september and early october.

Ithink it is 130 percent