Understanding Evolutionary Grades Quiz
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Questions and Answers

What is the term coined by British biologist Julian Huxley to contrast with clade?

  • Grade (correct)
  • Phylogenetics
  • Paraphyletic
  • Taxon
  • What determines the relationships among or within groups of organisms in phylogenetics?

  • Behavioral patterns
  • DNA sequences (correct)
  • Fossil records
  • Environmental factors
  • What is the result of an analysis in phylogenetics?

  • Clade
  • Evolutionary grade
  • Phylogenetic tree (correct)
  • Paraphyletic taxon
  • What is an evolutionary grade?

    <p>A group of species united by morphological or physiological traits</p> Signup and view all the answers

    Who was the first to divide tetrapods into the four familiar classes of amphibians, reptiles, birds, and mammals?

    <p>Julian Huxley</p> Signup and view all the answers

    What is the term coined by British biologist Julian Huxley to contrast with clade?

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

    What determines the relationships among or within groups of organisms in phylogenetics?

    <p>Observed heritable traits</p> Signup and view all the answers

    What is the result of an analysis in phylogenetics?

    <p>Phylogenetic tree</p> Signup and view all the answers

    What represents a paraphyletic taxon?

    <p>Ancestral group in an evolutionary grade</p> Signup and view all the answers

    Who was the first to divide tetrapods into the four familiar classes of amphibians, reptiles, birds, and mammals?

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

    What is the term coined by Julian Huxley to contrast with clade?

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

    How are the relationships among or within groups of organisms determined in phylogenetics?

    <p>By phylogenetic inference methods focusing on observed heritable traits</p> Signup and view all the answers

    What represents a paraphyletic taxon?

    <p>An ancestral group that is not phylogenetically complete</p> Signup and view all the answers

    What is the result of an analysis in phylogenetics?

    <p>A phylogenetic tree</p> Signup and view all the answers

    Who was the first to divide tetrapods into the four familiar classes of amphibians, reptiles, birds, and mammals?

    <p>Julian Huxley</p> Signup and view all the answers

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