Biology Classification Systems Quiz
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Questions and Answers

What was a limitation of the artificial systems in classification mentioned in the text?

  • They did not take into account the evolutionary relationships between organisms.
  • They only considered external features.
  • They gave equal importance to vegetative and sexual characteristics. (correct)
  • They focused too much on internal features like embryology.
  • What additional features were considered in natural classification systems?

  • Carotenoids and chlorophyll
  • Ultrastructure and anatomy
  • Phytochemistry and embryology (correct)
  • Vegetative and sexual characteristics
  • Who proposed a classification system for flowering plants based on natural affinities among organisms?

  • Charles Darwin
  • Gregor Mendel
  • George Bentham and Joseph Dalton Hooker (correct)
  • Carl Linnaeus
  • What is the basis of phylogenetic classification systems?

    <p>Evolutionary relationships between organisms</p> Signup and view all the answers

    What aspect of classification becomes more important when there is no supporting fossil evidence?

    <p>Using information from multiple sources</p> Signup and view all the answers

    How is Numerical Taxonomy carried out according to the text?

    <p>Assigning equal importance to all characters</p> Signup and view all the answers

    What is the primary method of reproduction in algae?

    <p>Asexual reproduction by fragmentation</p> Signup and view all the answers

    Which of the following is a common type of spore produced during asexual reproduction in algae?

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

    What is the key characteristic that distinguishes sexual reproduction in Ulothrix and Spirogyra?

    <p>Flagellated gametes in Ulothrix and non-flagellated in Spirogyra</p> Signup and view all the answers

    What distinguishes kelps from other forms of algae?

    <p>Kelps form massive plant bodies</p> Signup and view all the answers

    Which pigment is characteristic of algae and is responsible for photosynthesis?

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

    How do algae primarily reproduce vegetatively?

    <p>By fragmentation</p> Signup and view all the answers

    What is the term for the fusion between a large, nonmotile female gamete and a smaller, motile male gamete?

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

    Which class do algae like Fucus and Laminaria belong to?

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

    Which compounds are produced by certain brown and red algae that are used commercially as water-holding substances?

    <p>Algin and carrageen</p> Signup and view all the answers

    What is the primary purpose of agar obtained from Gelidium and Gracilaria?

    <p>To grow microbes</p> Signup and view all the answers

    Which algae class are commonly referred to as green algae?

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

    What process is exemplified by the vegetative reproduction observed in many algae?

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

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