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14.- Natural Selection

Usuario eliminado 11 preguntas Actualizado el 7 sep 2016

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Preguntas del test (11)

  1. 1How the Industrial Revolution changed the proportion of colors in peppered moth?Imagen de la pregunta 1
    1. ABy changing the color of trunks
    2. BBy changing the color of moths
    3. CContaminating the environment
  2. 2What is genetic drift?Imagen de la pregunta 2
    1. AGuided changes in allele frequency
    2. BRandom changes in allele frequency
    3. CRandom changes in gene proportion
  3. 3Why the Darwin´s study of beak finches shape was so important?Imagen de la pregunta 3
    1. AIt was the first study of Darwin
    2. BThe study showed how finches had evolved
    3. CIt was an example of how finches had adapted to different environment
  4. 4What are the 4 main ideas of Darwin Natural Selection Theory?Imagen de la pregunta 4
    1. AIndividual variation ,heritable variations, adapted descendants and competition for resources
    2. BIndividual variation, heritable variations, adapted descendants and reproduction
    3. CIndividual variation, heritable variations, too many descendants and natural selection
  5. 5Can you explain the concept of “the struggle for existence”?Imagen de la pregunta 5
    1. ACompetition among living things for getting food
    2. BCompetition for resources needed to live
    3. CCompetition for reproduction and ensure the survival of the specie
  6. 6According to what Darwin said, is the following sentence true? “Natural selection favors the strongest ones”Imagen de la pregunta 6
    1. AVerdadero
    2. BFalso
  7. 7Who evolves, individual or population?Imagen de la pregunta 7
    1. AIndividual
    2. BPopulation
    3. CBoth
  8. 8Why Darwin was so worry about his family?Imagen de la pregunta 8
    1. ABecause he was very far away from them
    2. BInbreeding resulted in weaker and sickly descendant
    3. CInbreeding resulted in infertility
  9. 9Why giraffe´s neck has been growing throughout the evolution?Imagen de la pregunta 9
    1. ABecause of natural selection against short necks
    2. BBecause of natural selection for long necks
    3. CBecause of natural selection against long necks
  10. 10Smaller babies have more infectious problem and larger babies have problems at labour naturally. This is an example of:Imagen de la pregunta 10
    1. ANatural selection for extreme phenotypes
    2. BNatural selection against extreme phenotypes
    3. CNatural selection against medium phenotypes

Información

Descripción
https://www.khanacademy.org/science/biology/crash-course-bio-ecology/crash-course-biology-science/v/crash-course-biology-113
Autor
Usuario eliminado
Idioma
English
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20
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Creado el 6 sep 2016 · actualizado el 7 sep 2016
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