Bacteria perform each of the following ecological roles. which role typically does not involve a symbiosis?
a) skin commensalist
b) decomposer
c) aggregates with methane-consuming archaea
d) gut mutualist
e) pathogen

i think the answer is g1

hope i

-lavira: )

b. to discover aspects of the natural world.

hopefully i .

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).