The table provides data about the frequency of traits in a population over several generations, Based on this data, which trait provided individuals with an advantage in response to an
environmental change that happened between the fifth and tenth generations? *
Trait
1st Generation
5th Generation
10th
Generation
A
25%
3%
10%
B
25%
20%
70%
с
25%
30%
12%
D
25%
40%
15%

C- a hypothesis or d- an observation

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.