Which of the following statements about matter and energy cycling is TRUE? *
Matter and energy can only be transferred once within an ecosystem.
Matter can be transferred many times within an ecosystem, but energy can only be
transferred once.
Energy can be transferred many times within an ecosystem, but matter can only be
transferred once.
Both matter and energy can be transferred many times within an ecosystem.

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.