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QUESTION 16 The theory that earthquakes, floods, unharmed is and other natural disasters cause extinctions of some species while leaving others QUESTION 17 Two different species of pine release their pollen at different times of the year. This is an example of O ecological isolation. O geographic isolation. O temporal isolation. O behavioral isolation. O mechanical incompatibility QUESTION 18 As predator and prey species acquire new adaptations to help them survive the constant "arms race" between them, what evolutionary phenomenon is occurring? O Artificial selection O Competition O Coevolution O Sexual selection O Genetic drift QUESTION 19 When offspring are infertile after breeding occurs between individuals of different species, the genetic identities of the two populations are protected by O behavioral isolation. O temporal isolation. O genetic isolation. O mechanical incompatibility. O hybrid infertility. QUESTION 20 Imagine that a population of hummingbirds with an intermediate beak size develops longer beaks over time. This is an example of O directional selection. O stabilizing selection. O disruptive selection. O sexual selection. O genetic drift. QUESTION 21 Organisms that have the greatest reproductive success are considered the most evolutionarily fit. True or False? True O False
QUESTION 16 The theory that earthquakes, floods, unharmed is and other natural disasters cause extinctions of some species while leaving others QUESTION 17 Two different species of pine release their pollen at different times of the year. This is an example of O ecological isolation. O geographic isolation. O temporal isolation. O behavioral isolation. O mechanical incompatibility QUESTION 18 As predator and prey species acquire new adaptations to help them survive the constant "arms race" between them, what evolutionary phenomenon is occurring? O Artificial selection O Competition O Coevolution O Sexual selection O Genetic drift QUESTION 19 When offspring are infertile after breeding occurs between individuals of different species, the genetic identities of the two populations are protected by O behavioral isolation. O temporal isolation. O genetic isolation. O mechanical incompatibility. O hybrid infertility. QUESTION 20 Imagine that a population of hummingbirds with an intermediate beak size develops longer beaks over time. This is an example of O directional selection. O stabilizing selection. O disruptive selection. O sexual selection. O genetic drift. QUESTION 21 Organisms that have the greatest reproductive success are considered the most evolutionarily fit. True or False? True O False
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