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- 1. Multiple Choice
Which of the three graphs shows stabilizing selection?ABC - 2. Multiple ChoiceWhich of the three graphs shows disruptive selection?ABC
- 3. Multiple ChoiceIf finches with large beaks and finches with small beaks increase in a population while finches with average sized beaks decreases, which pattern of natural selection has occurred?Directional selectionDisruptive selectionStabilizing selection
- 4. Multiple ChoiceWhat type of selection?DirectionalStabilizingDisruptive
- 5. Multiple ChoiceOnly populations can evolve.
Individuals can not evolve.TrueFalse - 6. Multiple ChoiceRobins typically lay fours eggs. If more then four eggs are produced then the baby chicks are malnourished while smaller egg numbers result in no viable (able to live) baby chicks. This is an example ofstabalizingdisruptivedirectionnone of the above
- 7. Multiple ChoiceWhat type of natural selection is this?Disruptive SelectionDirectional SelectionStabilizing SelectionSexy Selection
- 8. Multiple ChoiceWhat is the correct explanation for what is happening in this graph?There are a lot of average-sized beaksThere are no beaksThere are a lot of small beaks onlyThere are a lot of small and large beaks, but not average-sized ones
- 9. Multiple ChoiceScientists find that most feral cats in a neighborhood have whiskers about 12 cm long. After about 15 generations of stabilizing selection, what would you expect to see?even more cats with 12 cm long whiskersmost cats with less than 12 cm long whiskersmost cats with more than 12 cm long whiskersmost cats with whiskers either less than or more than 12 cm long, very few with whiskers 12 cms
- 10. Multiple ChoiceHuman babies don't do well if they are born too small. If they are too big complications can occur during birth. Baby size should then be selected for by which method?stabilizingdirectionaldisruptiveBeyonce is having twins
- 11. Multiple ChoiceWhat type of selection is depicted in the picture?stabilizingdirectionaldisruptivethe answer is not here
- 12. Multiple Choice"Survival of the Fittest" describes which theorya) natural selectionb) gravityc) heredityd) string theory
- 13. Multiple ChoiceModern whales developed their traits through natural selection. What occurs during the process of natural selection?Organisms choose mates from other species to create new speciesBreeders selectively cross organisms with desired traitsOnly the fittest organisms can survive and reproduceOrganisms remain exactly the same over time.
- 14. 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.
- 15. Multiple ChoiceThese moths are all the same species. The differences between their wings is an example of ________________Natural SelectionVariationHomeostasisExtinction
- 16. Multiple Choice
Occurs when stable environment favours the intermediate phenotype
Directional selection
Disruptive selection
Stabilizing selection
Inbeeding
- 17. Multiple Choice
A balanced polymorphism exist through disruptive selection in seed cracker finches from Cameroon in which small and large billed birds specialized in cracking soft and hard seeds, respectively. If long term climatic change resulted in all seeds becoming hard, what type of selection would then operate on the finch population?
Sexual selection
Stabilizing selection
Directional selection
Disruptive selection
- 18. Multiple Choice
Occurs when changing environment favours one extreme phenotype
stabilizing selection
Directional selection
Disruptive selection
Outbreeding
- 19. Multiple ChoiceGenetic diversity decreases and individuals at the center of the curve have higher fitness.Disruptive SelectionDirectional SelectionStabilizing SelectionArtificial Selection
- 20. Multiple Choice
Aspen trees that are over 25 m tend to blow over in high winds; aspen that are under 15 m don't get enough sun
directional selection
stabilizing selection
disruptive selection
artificial selection
- 21. Multiple Choice
Tall kelp have a distinct advantage over shorter kelp in receiving needed sunlight in their ocean environment
directional selection
disruptive selection
stabilizing selection
sexual selection
- 22. Multiple Choice
Fish that produce 40,000+ eggs have greater fitness than fish that produce less than this number
directional selection
stabilizing selection
disruptive selection
artificial selection
- 23. Multiple Choice
Labradoodles and cockapoos are different varieties of domestic dogs that can be purchased from dog breeders.
directional selection
stabilizing selection
disruptive selection
artificial selection
- 24. Multiple Choice
Bacteria that are too large cannot obtain nutrients efficiently and bacteria that are too small cannot compete for those nutrients successfully
directional selection
stabilizing selection
disruptive selection
artificial selection
- 25. Multiple Choice
Ground finches born following a severe drought tend to have larger beaks (on average) than the previous generation.
directional selection
stabilizing selection
disruptive selection
artificial selection
- 26. Multiple Choice
Light-colored oysters would blend into the rocks in the shallows, and the darkest would blend better into the shadows. The ones in the intermediate range make them easier prey.
directional selection
stabilizing selection
disruptive selection
artificial selection
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