All of the following may begin an ice age except a. volcanic eruptions b. earths revolution around the sun c. clustering of continents near the poles d. an increased amount of dust particles in earths atmosphere

 D. An Increased Amount of Dust Particles in Earths Atmosphere

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. 

Awell breed cat that has no defects or has never been damaged before.hope this ! mark me as brainiest!