Eggs are a rich source of nutrients for other organisms (such as egg-eating predators, humans, and microorganisms) because the yolk is supplied with abundant resources for the:

not sure if this what   you'r looking for would be percent composition

i think the answer is composed of atoms

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).

not sure what it is