What is speciation? A. when a species begins reducing the size of its population
B. the evolution of a new species through a change in the
environment that separates a population
C. when a species outcompetes another and the species
become extinct
D. when a new allele created in a species and the
frequency of the allele changes

B, the evolution of a new species through a change in the environment is the answer

Cwould most likely affect a cow's offspring.hope this 's and give me brainiest!  

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.