Use your notes and textbook pages 40x10 to complete the following VOCABULARY Use the terms listed below to complete the following Choices may be used more than once Speciation Geographic isolation Reproductive isolation Polyploidy Gradualism Punctuated equilibrium Adaptive radiation Divergent evolution Convergent evolution 1 Occurs when a physical barrier divides a population Speciation 2 May result in immediate reproductive isolation 3 Occurs when two groups of organisms have different mating seasons 4 The idea that speciation occurs rapidly with long periods of genetic equilibrium in between 5 A process that produces two species from one is known as 6 Occurs when formerly interbreeding organisms can no longer mate and produce fertile offspring 7 The idea that species originate through a gradual change of adaptations 8 A mountain range separates two groups of squirrels and over time each small population develops its own gene pool Many flowering plant species and important crops such as wheat cotton and apples originated by this 10 The evolution of sea lilies supports this idea of speciation rates 11 An ancestral species evolves into an array of species to fit a number of diverse habitats This pattern of evolution is commonon islands Ex Hawaii s honeycreepers