Eutrophication is the result of . A.) excessive nitrogen fixation
B.) organic matter decay
C.) fertilizer runoff
D.) greenhouse gases
C

3. in the fruit fly, recessive mutation brown, b, causes brown color of the eye and absence of red pigment. recessive mutation p of another independent gene causes purple color of the eye and absence of brown pigment. the cross of a brown-eyed female and purple-eyed male produced wild type eyes. what will be the colors and their ratio in f2?