Suppose a farmer wishes to evaluate a new fertilizer. Her hypothesis is that the new fertilizer will be more effective that her current one, and will result in healthier, taller plants. She uses the new fertilizer on her corn field (Field 1), while using her current fertilizer on her soybean field (Field 2). Both fields are the same size, have the same type of soil, and get roughly the same amount of water and sunlight. After the growing season, the farmer notes that indeed, the corn crop in Field 1 seems to be healthier than the soybean crop in Field 2. She concludes that the new fertilizer is far superior than the old one. Was the farmer's experiment an effective test of her hypothesis

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. 

  like australopithecus afarensis; probably the direct ancestor of this group. africa: 5.8 to 4.4 million years ago.