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 (B)</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 (D)</p> Signup and view all the answers

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

<p>Grade (A)</p> Signup and view all the answers

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

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

What is the result of an analysis in phylogenetics?

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

What represents a paraphyletic taxon?

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

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

<p>Grade (D)</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 (D)</p> Signup and view all the answers

What represents a paraphyletic taxon?

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

What is the result of an analysis in phylogenetics?

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

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