That they are not equally visible. ALL BUT ONE statement is supported by Kettlewell's data. That is
es )
A)
Dark moths had a survival disadvantage in industrial Dorset.
B)
Light moths had a survival advantage in forested Birmingham.
C)
Light moths had a survival disadvantage in industrial Dorset.
D)
Dark moths had a survival disadvantage in forested Birmingham.
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It is used to during sexual reproduction between humans

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.