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- 1. Multiple ChoiceWhen an organism completely dies out, it is called.....AdaptionExtinctionFossilizationMutation
- 2. Multiple Choice
The gradual change in species over time is...EvolutionNucleotideAdaptationNatural Selection - 3. Multiple ChoiceThe white feathers of a snowy owl allow it to blend in with its environment during the winter months (snow). This is an example of ________________SpeciesEnvironmental ChangeAdaptationVariation
- 4. Multiple ChoiceDarwin referred to this as survival of the fittest. Over time, it results in changes in the inherited characteristics of a population because organisms with adaptations that make them fit for their environment will survive and reproduce better than those without favorable traits.Natural SelectionGenetic VariationSurvival of the Fittest
- 5. Multiple ChoiceGenetic differences between organisms of the same speciesVariationAdaptationBehaviorEnvironment
- 6. Multiple ChoiceWhat is the advantage of having different shaped beaks?To look different from other species.To be able to eat the food readily available in the environment.To protect itself against predators.To protect itself against prey.
- 7. Multiple ChoiceThe struggle for existence against other members of an organisms species isCompetitionNatural Selectiongene flowgenetic drift
- 8. Multiple ChoiceWhich of the following is NOT a factor that affects the process of natural selection?OverpopulationFossilsCompetitionVariations
- 9. Multiple ChoiceThe 4 mechanisms of evolution are:mutation, extinction, adaptation, and natural selectionvariation, environmental changes, extinction, and genetic engineeringextinction, variation, adaptation, and global warminginherited traits, adaptation, genetic engineering, and extinction
- 10. Multiple ChoiceGenotype refers to the ...physical expression of the genesthe possible combination of alleles in a genewhether an allele is dominant or recessivehow an organism will appear
- 11. Multiple ChoiceAn offspring will receive how many alleles from each parent to determine a specific trait?onetwothreefive
- 12. Multiple ChoiceWhich of the following is a phenotype?BBBbbbBlue eyes
- 13. Multiple ChoiceWhat is a phenotypeThe genetic make up (code)The physical trait
- 14. Multiple Choicehaving two of the same genes for the trait (sometimes called purebred).homozygoushetrozygousproteinchromosome
- 15. Multiple Choicehaving two different genes for a trait (sometimes called hybrid).proteinhomozygousheterozygousgenotype
- 16. Multiple ChoiceMagda is a tall, 11 year old drummer. She has a scar on her right cheek. She is good at swimming. Which of her traits did Magda most likely inherit?heightthe scarability to swimability to play drums
- 17. Multiple ChoiceG = green, g = yellow
The genotype for a yellow plant is...GGGgggall of the choices result in yellow - 18. Multiple ChoiceWhy are advantageous traits more likely to be passed onto offspring?Because they are more likely to survive and reproduce.Because they come from dominant alleles.Because they come from recessive alleles.Because the trait is an acquired phenotype.
- 19. Multiple ChoiceIn his observations of the finches in the Galapagos Islands, Darwin stated that we could never “watch” natural selection in action. Why did Darwin believe this?Natural selection happens so quickly, it is difficult to see.Natural selection is an internal process that can not be outwardly observed.Natural selection occurs over so many generations, it is impossible to see changes occur.Natural selection is a process that occurs randomly, and it is unlikely that a human would be present when it occurs.
- 20. Multiple ChoiceThe fact that all organisms have DNA as their genetic material is evidence thatall organisms undergo natural selection.all organisms may have descended from a common ancestor.selective breeding takes place every day.genetic resistance rarely occurs.
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