1. What hypothesis is being tested in this experiment? 2. Compare the growth of the two groups of plants in this experiment.

3. Read the introduction and provide an explanation for why one group of plants grew better than the other group of plants.

4. What caused the plants grown in the sterilized soil to grow so much slower than the plants grown in the non-sterilized soil?

5.Does this experiment indicate that mycorrhizae are necessary for the proper growth of plants? Explain

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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. 

They are both used to view parts of the cell