zones in lakes and oceans are delineated by depth, distance from shore, or light penetration. different zones have different physical and chemical characteristics, such as temperature and salinity. label the diagrams of zonation in lakes and oceans.

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?