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EVOLUTION

EVOLUTION . Review. In the earliest days of the Earth, the atmosphere contained very little…. a. Nitrogen b . Oxygen c. Argon d . Air. b . Oxygen. The earliest form of life was…. A. Reptiles B. Fungi C. Bacteria D. Mammals. C. Bacteria.

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EVOLUTION

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  1. EVOLUTION Review

  2. In the earliest days of the Earth, the atmosphere contained very little… a. Nitrogen b. Oxygen c. Argon d. Air • b. Oxygen

  3. The earliest form of life was… A. Reptiles B. Fungi C. Bacteria D. Mammals C. Bacteria

  4. Humans have existed on the Earth for a relatively short period of time. True False True

  5. Four types of evidence for evolution are A. Anatomical, embryological, fossil, DNA B. DNA, fossil, microscopic, eyewitness C. Eyewitness, fossil, embryological, DNA • A. Anatomical, embryological, fossil, DNA

  6. Embryos show evidence of evolution, because they… A. Often look alike at the beginning of the embryonic development B. Contain pharyngeal pouches, just like fish C. Often have tails, even if the fully developed animal does not have a tail D. All of the above • D. All of the above

  7. Vestigial structures are those that A. Have become very small as a result of disuse B. Have a similar function to structures in other organisms, but evolved separately C. Have a similar structure to those in other organisms, even though they have different uses • A. Have become very small as a result of disuse

  8. Homologous structures are… • A. Have become very small as a result of disuse • B. Have a similar function to structures in other organisms, but evolved separately • C. Have a similar structure to those in other organisms, even though they have different uses • C. Have a similar structure to those in other organisms, even though they have different uses

  9. Natural selection is also known as… A. Artificial selection B. Survival of the fittest C. Darwinism D. Anatomical B. Survival of the Fittest

  10. In evolution, which is more important? Surviving a hardship The ability to reproduce The ability to reproduce

  11. What causes organisms to evolve? A. Desire to change B. Increasing ability to hide from predators C. Increasing ability to survive extreme conditions (heat, cold) D. Increasing ability to resist drug or disinfectant treatment E. B, C and D • E. B, C and D

  12. Evolution is a change in A. Individuals B. Species B. Species

  13. Gradualism is A. Lack of evidence of evolution B. Change generally occurs over long periods of time C.Periods of little or no change are interrupted by periods of rapid change D. None of the above B. Change generally occurs over long periods of time

  14. Punctuated Equilibrium is A. Lack of evidence of evolution B. Change generally occurs over long periods of time C.Periods of little or no change are interrupted by periods of rapid change D. None of the above C. Periods of little or no change are interrupted by periods of rapid change

  15. This is a picture of a… a. Evolving tree b. Phylogenic Tree c. Family Tree B. Phylogenic Tree

  16. Microevolution is … A. The creation of a new species B. Changes that occur as a result of an organism moving C. Changes in an organism’s DNA that do not result in a new species C. Changes in an organism’s DNA that do not result in a new species

  17. We know a new species has formed when… A. It can no longer interbreed with its ancestor B. It looks different from its ancestor C. It lives in a different environment from its ancestor A. It can no longer interbreed with its ancestor

  18. Which of the following is an example of evolution? A. Development of antibiotic resistance B. Change in coloring in order to blend in with environment C. Development of defense mechanisms, like armor D. Loss of limbs that are not needed for movement E. All of the above E. All of the above

  19. Speciation is… A. the process by which a new species forms B. An increase in the number of individuals in a species C. Another word for extinction A. the process by which a new species forms; over time separate populations of the same species become very different from one another

  20. Directional selection a. Selects for one extreme trait, like where malaria is not present, sickle cell allele is selected against b. Selects for intermediate trait, like Human birth weight. c. Both extremes are selected for, like fur color – light fur blends in with the sand, and dark fur blends in with rocks a. Selects for one extreme trait, like where malaria is not present, sickle cell allele is selected against

  21. Disruptive selection a. Selects for one extreme trait, like where malaria is not present, sickle cell allele is selected against b. Selects for intermediate trait, like Human birth weight. c. Both extremes are selected for, like fur color – light fur blends in with the sand, and dark fur blends in with rocks c. Both extremes are selected for, like fur color – light fur blends in with the sand, and dark fur blends in with rocks

  22. Balancing (stabilizing) selection a. Selects for one extreme trait, like where malaria is not present, sickle cell allele is selected against b. Selects for intermediate trait, like Human birth weight. c. Both extremes are selected for, like fur color – light fur blends in with the sand, and dark fur blends in with rocks b. Selects for intermediate trait, like Human birth weight.

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