Answer:
Explanation:
d two haploid cells that are genetically diffrent
Answer:
b many ogansisms have become exinct
Explanation:
Natural selection. Only spiders that were more resistant to the pesticide lived through the first spraying of the pesticide, thus we're the only ones that could reproduce. This in turn made the offspring of the previous generation more resistant as well; thus making the pesticide less effective.
Is this a serious question?
Its a 25 75 thing less then half is color blind so no its not rare and also there minds are more on edge.