1. Which ofthefollowingisthemajorfunctionofc ellmembrane? A. Facilitatescompartmentalization B. Separatescellsfromextracellularcomp onents C. BothAandB D. Noneoftheabove

answer; i believe that the correct answer is (light);

the farther away the object is from the central star (the sun) it's gravitainal pull on the object is weaker when it is farther

explanation:

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

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).