Aresearcher hypothesizes that a new club can improve a person's golf score. which of these would most likely be the dependent variable in a study involving this golf club? a. the number of participants in the study b. the golf scores of the participants in the study c. the ages of people who golf with other golf clubs d. the number of people who buy other kinds of golf clubs

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).

propane is burned to provide the heat in many cooking grills. the chemical reaction for this process is shown in the equation below.

c3h8 + 5o2 ? 3 co2 + 4h2o + energy

what are the products in this chemical reaction?

3co2 + 4h2o + energy