Answer following questions
how natural selection influences the effectiveness of antibiotics?
why should natural selection reinforced reproductive isolation?
what will natural selection eventually lead to in a population? ?

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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