Which of the following are examples of the physical and chemical nonspecific immune system

what is shown in the image?

eukaryote

chloroplast

mitochondrion

submitted

c. heat from the poles back down towards the equator.

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).