Understanding Natural Selection
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Questions and Answers

What is natural selection?

  • The process of animal populations adapting to their environment over time. (correct)
  • The process of animals evolving into plants.
  • The process of animals choosing their own traits.
  • The process of animal populations staying the same over time.

    • Why are individuals with well-suited traits more likely to survive?

  • Because they are more likely to survive and reproduce. (correct)
  • Because they are less likely to reproduce.
  • Because they pass on their genes randomly.
  • Because they choose their environment.

    • Which mice in the sandy environment are less vulnerable to predators?

  • White or beige mice (correct)
  • Yellow mice
  • Purple mice
  • Dark brown mice

    • How does natural selection affect individuals with less desirable traits?

    <p>It eliminates their traits from the population over time.</p> Signup and view all the answers

    Who developed the idea of natural selection?

    <p>Charles Darwin</p> Signup and view all the answers

    What did Charles Darwin base the name 'natural selection' on?

    <p>The practice of artificial selection in humans</p> Signup and view all the answers

    Why is it important for a population to have optimal traits for survival?

    <p>To enhance their chances of survival and reproduction</p> Signup and view all the answers

    What drives natural selection and determines which traits will help an animal to be successful?

    <p>Environment</p> Signup and view all the answers

    What is the main source of mutations that can be passed on to offspring?

    <p>Both spontaneous and environmental mutations</p> Signup and view all the answers

    Which type of mutation is caused by exposure to external harmful substances like radiation or chemicals?

    <p>Environmental mutation</p> Signup and view all the answers

    Which environmental factor directly influences which traits will be considered adaptive for an animal?

    <p>Climate</p> Signup and view all the answers

    What is a classic example of the influence of the environment on natural selection discussed in the text?

    <p>Darwin's finches</p> Signup and view all the answers

    What is a factor that might determine whether a mutation is beneficial, harmful, or neutral to a species?

    <p>Environmental impact</p> Signup and view all the answers

    What is the main driver of the evolution of different beak types in Darwin's finches?

    <p>Primary food source variability</p> Signup and view all the answers

    Why did giraffes with longer necks have a competitive advantage according to the text?

    <p>They could reach food sources others couldn't</p> Signup and view all the answers

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