9. the enzymes that catalyze cellular reactions are macromolecules made of organic compounds
composed of carbon, hydrogen, oxygen, and nitrogen. these types of macromolecules are known
as
a. starches
b. sugars
c. proteins
d. fats

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).

dont know just give me brainliest