In mitosis of a single cell, the nucleus a) enlarges. b) splits into two. c) splits into four. eliminate d) loses half of its chromosomes.

I have had this question on a test of mine before and i also had trouble with it. The answer is B, splits in two. I hope this helps!!

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.

Cis the