Causes of Evolution: Microevolution & Macroevolution
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Questions and Answers

What is the primary focus of the field of systematics?

  • Identifying geographical barriers in speciation
  • Analyzing DNA sequences to understand speciation
  • Classifying and determining evolutionary relationships of organisms (correct)
  • Studying the morphology of organisms

    • What is the primary difference between microevolution and macroevolution?

  • Population size
  • Time scale (correct)
  • Geographic area
  • Type of trait evolved

    • What is the term for the process of a single species splitting into two distinct species?

  • Speciation (correct)
  • Sympatric speciation
  • Polyploidy
  • Allopatric speciation

    • What is the term for the migration of individuals or movement of gametes between populations, resulting in a change in allele frequencies?

    <p>Gene flow</p> Signup and view all the answers

    What type of speciation involves the duplication of sets of chromosomes within individuals?

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

    What is the term for the study of the evolutionary relationships of organisms?

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

    What is the term for the isolation of two species due to differences in their reproductive organs?

    <p>Mechanical isolation</p> Signup and view all the answers

    What is the name of the model that assumes allele frequencies do not change across generations, and genotype frequencies can be predicted from allele frequencies?

    <p>Hardy-Weinberg principle</p> Signup and view all the answers

    What is the term for the process by which two different species combine their chromosomes to form a new species?

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

    What type of natural selection occurs when the average trait is selected in the center?

    <p>Stabilizing selection</p> Signup and view all the answers

    What is the primary condition required for speciation to occur?

    <p>Reproductive isolation</p> Signup and view all the answers

    What is the term for the random changes in allele frequencies from one generation to the next?

    <p>Genetic drift</p> Signup and view all the answers

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