the waterproof cuticle covering the epidermis of land plants helps prevent dehydration, much like the skin of some land animals. as a consequence of having a cuticle, what other evolutionary adaptation was important for most land plants?

the denominator has a very specific role.

not only is it colder, it also becomes darker, less salty, and more dense.

the last one: artificial selection/genetic engineering

plant breeding is modifying the genetic composition of the plant - but this isn't cloning (which is specifically introducing a gene into a genome). but you are artificially selecting for the phenotype that you want.

the second one is literally genetic engineering - the gene would have been cloned first and then inserted or genetically engineered into the new plant cell (the cotton).