Please match: 12345 Allele 12345 Analogous 12345 Sympatric 12345 Homologous 12345 Allopatric   1. The wing of a bat and the leg of a horse are examples of ____ structures 2. The wing of a bat and the wing of a butterfly are examples of______ structures 3. A version of a gene is called a(n) 4. Speciation that occurs when two species are together is called 5. Speciation resulting from two populations being separated by a physical barrier is called

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Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.