14.- Natural Selection

Descrição

https://www.khanacademy.org/science/biology/crash-course-bio-ecology/crash-course-biology-science/v/crash-course-biology-113
PEDRO ALVAREZ JIMENEZ
Quiz por PEDRO ALVAREZ JIMENEZ, atualizado more than 1 year ago
PEDRO ALVAREZ JIMENEZ
Criado por PEDRO ALVAREZ JIMENEZ quase 9 anos atrás
105
2

Resumo de Recurso

Questão 1

Questão
How the Industrial Revolution changed the proportion of colors in peppered moth?
Responda
  • By changing the color of trunks
  • By changing the color of moths
  • Contaminating the environment

Questão 2

Questão
What is genetic drift?
Responda
  • Guided changes in allele frequency
  • Random changes in allele frequency
  • Random changes in gene proportion

Questão 3

Questão
Why the Darwin´s study of beak finches shape was so important?
Responda
  • It was the first study of Darwin
  • The study showed how finches had evolved
  • It was an example of how finches had adapted to different environment

Questão 4

Questão
What are the 4 main ideas of Darwin Natural Selection Theory?
Responda
  • Individual variation ,heritable variations, adapted descendants and competition for resources
  • Individual variation, heritable variations, adapted descendants and reproduction
  • Individual variation, heritable variations, too many descendants and natural selection

Questão 5

Questão
Can you explain the concept of “the struggle for existence”?
Responda
  • Competition among living things for getting food
  • Competition for resources needed to live
  • Competition for reproduction and ensure the survival of the specie

Questão 6

Questão
According to what Darwin said, is the following sentence true? “Natural selection favors the strongest ones”
Responda
  • True
  • False

Questão 7

Questão
Who evolves, individual or population?
Responda
  • Individual
  • Population
  • Both

Questão 8

Questão
Why Darwin was so worry about his family?
Responda
  • Because he was very far away from them
  • Inbreeding resulted in weaker and sickly descendant
  • Inbreeding resulted in infertility

Questão 9

Questão
Why giraffe´s neck has been growing throughout the evolution?
Responda
  • Because of natural selection against short necks
  • Because of natural selection for long necks
  • Because of natural selection against long necks

Questão 10

Questão
Smaller babies have more infectious problem and larger babies have problems at labour naturally. This is an example of:
Responda
  • Natural selection for extreme phenotypes
  • Natural selection against extreme phenotypes
  • Natural selection against medium phenotypes

Questão 11

Questão
What's disruptive selection?
Responda
  • Selection against common traits
  • Selection for common traits
  • Selection for extreme traits without any change in the environment

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