Farmers may someday clone their best milk-producing cow into a whole herd. what potential disadvantage might be important to consider in having such a large group of clones on one farm?

Had to look for the options and here is my answer. The potential disadvantage that I can see that might be essential to reconsider when cloning a large group of cows is that lack of variation may result in the limitation of the survival of the herd. Hope this answer 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.