Help me plz Which is a difference between animal populations in primary succession and secondary succession?
A.
Animals can be present during the start of primary succession, but they are never present during the start of secondary succession.
B.
Animals can be present during the start of secondary succession, but they are never present during the start of primary succession.
C.
There is more animal biodiversity after the process of primary succession has been completed.
D.
There is more animal biodiversity after the process of secondary succession has been completed.

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.