The amount of matter in the earth system remains constant over time. the forms and locations of the matter stored within the system, however, change continually as it cycles through the earth. matter can be transferred between which of the following elements of the earth system?

a. from the physical environment to living organisms
b. from living organisms to the physical environment
c. from one living organism to another living organism
d. all of these

The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait.