Therefore, 66% of the squirrel population is 66% 2. There is a range of colouring in beetle shells. Below is a graph of this range of colouringbin beetle shells. Use the
graph below to answer the following:
Before Selection
After Selection a) What type of selection is occurring?
[1 mark]
Frequency
Is this an example of micro or
acroevolution? Explain. [2 marks]

It doesn’t show the symbol

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.

Sorry  i don't understand can you rephrase that