Demographic Factors: Age Structure and Birth Rate Quiz
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Questions and Answers

Which demographic factor is most directly related to the number of births in a population?

  • Sex ratio (correct)
  • Population density
  • Generation time
  • Age structure
  • In a population with an older age structure, which demographic factor would you expect to be higher?

  • Generation time
  • Death rate (correct)
  • Birth rate
  • Sex ratio
  • What is the term used to describe the statistical study of population changes over time?

  • Population dynamics
  • Demography (correct)
  • Ecology
  • Biostatistics
  • Which of the following demographic factors is used to analyze the age structure of a population?

    <p>Cohort analysis</p> Signup and view all the answers

    What type of population pyramid would you expect to see in a population with a high birth rate and low death rate?

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

    Which of the following demographic factors is most directly related to the future population size of a species?

    <p>Birth rate</p> Signup and view all the answers

    What does age structure refer to?

    <p>The relative number of individuals of each age group in a population</p> Signup and view all the answers

    What is a cohort?

    <p>The group of individuals of the same age</p> Signup and view all the answers

    What do demographers use population pyramids for?

    <p>To predict demographic trends in births and deaths</p> Signup and view all the answers

    When is the death rate typically highest?

    <p>In the first year of life</p> Signup and view all the answers

    Which countries are characterized by triangular population pyramids?

    <p>Kenya, Nigeria, Saudi Arabia</p> Signup and view all the answers

    What do the bottom portions of a population pyramid represent?

    <p>Pre-reproductive years</p> Signup and view all the answers

    What type of population pyramid is characteristic of a country with a shrinking population or negative growth?

    <p>An inverted triangle pyramid</p> Signup and view all the answers

    What is generation time strongly related to in a broad range of organisms?

    <p>Body size</p> Signup and view all the answers

    Which organisms generally have short generation times?

    <p>Small organisms</p> Signup and view all the answers

    What is a life table used for in ecology and demography?

    <p>To access how populations are changing in size</p> Signup and view all the answers

    How is a life table constructed?

    <p>By following the fate of a cohort from birth until all are dead</p> Signup and view all the answers

    What is a survivorship curve used to represent?

    <p>The numbers in a cohort still alive at each age</p> Signup and view all the answers

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