An organism’s characteristics, or traits, are due to genes. Different versions of genes create different traits. What are these different versions of genes called?

Select one:
a. DNA
b. alleles
c. gametes
d. chromosomes

Im assuming this is a multiple choice answer what is the answers to chooce from?

Your weave is crusty

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.