The final progression from adenoma to carcinoma can be caused by loss of TP53, a tumor suppressor gene. In order for this progression to occur, allele(s) must be lost, in contrast with mutation of the gene earlier in the process. (Assume haploinsufficiency does not affect any of the genes in this process.)

i think that d. wind is the answer.   i missed the question when i answered a. currents.

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls

i think the answer is a.keratin is the pigment responsible for skin color.

haha

it's made from mineral oil