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Challenging Vocabulary Words!

Artificial Selectionhumans allow only selected organisms to produce offspring
Natural Selectionthe stuggle for exsitence selects the fittest individuals to survive in nature
Common descentall living things share common ancestors
allelesdifferent forms of a gene
polgenicdescriptions of traits that are controlled by two or more genes
adaptiongenetically controlled trait that increases an individual's ability to pass along copies of its genes
mutationalong with gene shuffling a source of variation in nature that can have poweful positive or negative effects on organisms
speciesgroup of similar- looking organisms that can breed with one another and produce fertile offspring
fitnessorganism's success in passing genes to the next generation
gene poolname for the group of alleles shared by individuals within a species


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