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11 True or False If a mutation occurs in the DNA sequence it could increase the genetic variation in the population 12 13 14 15 Members of two or more populations can no longer interbred A type of reproductive isolation that involves different mating or courtship rituals A type of reproductive isolation caused by physical or geographic A type of reproductive isolation caused by populations reproducing at different times 16 Define evolution Use the scenario below to answer questions 17 20 A population of mice was studied At the beginning of the study the background of the environment was mostly dark rock and 75 of the mice had brown fur and 25 of the mice had light fur A natural disaster occurred and the background of the environment became mostly light Two hundred years later 20 of the mice in the population had brown fur and 80 had light fur 17 At the beginning of the study which kind of mice were best fit for survival 18 True or false After 200 years the allele frequency in the population changed 19 At the end of the study which kind of mice were best fit for survival 20 Why does this scenario show evolution 21 If the allele frequency in a population remains the same will evolution occur Use the diagram on the right to answer questions 22 23 22 Which organism is the most ancient a Geographical Isolation b Temporal Isolation c Behavioral Isolation d Reproductive Isolation 23 True or false If the organisms have similar adaptations they most likely lived in the same type of environment 24 Evolution is most likely to occur in a STABLE UNSTABLE environment 25 Check all that apply You will check 3 boxes Genetic variation in a population can be caused by Gene flow Mutations Stable environment Genotypes Gene shuffling Fossil of organism B 27 List at least 2 examples of fossils Fossi of organism C Fossil of organism A 26 Microbiologists recommend that hand sanitizer and antibacterial soaps should be used less They say this because these antibiotics do not kill all of the bacteria in a population on an individual s hands Explain how evolution can cause antibacterial resistance

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