1.Ecology is defined as Association between 2.Parasites suffer while the hosts gain 3.Which of this is not referred to edaphic factor? 4.Seechi disk is use to measure the 5.Potometer is use to measure 6.In detail describe the experiment to determine the water holding capacity of soil types. Please help!!!

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).