1) Which statement best describes allopatric speciation? a) New species form while living in the same habitat b) New species form due to sudden chromosome number changes c) New species form when populations are separated by a geographical barrier d) New species form due to different mating seasons 2) Sympatric speciation commonly occurs in plants due to: a) Natural selection in different habitats b) Polyploidy events c) Migration d) Genetic drift 3) Apple maggot flies originally laid eggs on hawthorn trees, but some began using apple trees, leading to reproductive isolation. This is an example of: a) Allopatric speciation b) Genetic drift c) Sympatric speciation d) Founder effect 4) Which of the following would most likely lead to allopatric speciation? a) Differences in mating songs within the same habitat b) A river changing course and dividing a population c) Polyploidy occurring in flowers d) Competition for food inside the same environment

Speciation

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