Evolution of Drug-Resistant Bacteria
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Questions and Answers

Which term describes the similarity resulting from common ancestry?

  • Evolution
  • Homology (correct)
  • Clone USA300
  • Vestigial structures
  • What are anatomical resemblances that represent variations on a structural theme present in a common ancestor called?

  • Mammalian forelimbs
  • Homologous structures (correct)
  • Vestigial structures
  • Clone USA300
  • What are remnants of features that served important functions in the organism's ancestors called?

  • Vestigial structures (correct)
  • Evolution
  • Homology
  • Clone USA300
  • What is the term used for the virulent strain of methicillin-resistant Staphylococcus aureus (MRSA) shown in Figure 19.15?

    <p>Clone USA300</p> Signup and view all the answers

    What is the process of descent with modification called?

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

    Which term refers to the anatomical and molecular similarities resulting from common ancestry?

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

    What are the anatomical similarities in vertebrate embryos called?

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

    What do all vertebrates have during the embryonic stage, according to Figure 19.17?

    <p>Tail and gill slits</p> Signup and view all the answers

    What are the anatomical resemblances in mammalian forelimbs called?

    <p>Homologous structures</p> Signup and view all the answers

    What is the term used for the process of descent with modification?

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

    Convergent evolution is the evolution of similar features in distantly related groups because they have a common ancestor.

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

    Analogous traits arise when groups independently adapt to similar environments in different ways.

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

    Convergent evolution can result in the evolution of analogous traits.

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

    The fossil record provides evidence of species extinction, but not the origin of new groups.

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

    Fossils can document important transitions, such as the transition from sea to land in the ancestors of cetaceans.

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

    The fossil record only provides evidence of species extinction, not changes within groups over time.

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

    Convergent evolution is the evolution of similar features in closely related groups.

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

    Analogous traits arise when groups independently adapt to different environments in similar ways.

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

    The fossil record can document the transition from land to sea in the ancestors of cetaceans.

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

    Convergent evolution occurs when closely related groups independently evolve similar features due to similar environmental pressures.

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

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