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Answer:
Sexual reproduction increases the genetic variation of a species because it involves combining of genetic materials of two parents/individuals to form an offspring.
Explanation:
Sexual reproduction is a type of reproduction that involves formation of an offspring by combination of male and female gametes. Each gamete carries a haploid set of chromosomes. When gametes from both the parents combine, a zygote is formed which has a diploid set of chromosomes. So, sexual reproduction involves combination of genetic materials of two different individuals, hence, it leads to genetic variation.
The Cunninghams and Ewells from the novel To Kill a Mockingbird are both poor and belongs to the lowest circle of Maycomb society yet they differ in such a way that Walter Cunningham pays Atticus his services in goods than money. They are also a step above Ewells as they work harder in their land than just rely on welfare.