Biology: Classification and Taxonomy
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Questions and Answers

What is the correct way to write a species name in the binominal system?

  • Both genus and species in lower case letters
  • Genus in lower case and species in capital letter
  • Genus in capital letter and species in lower case (correct)
  • Both genus and species in capital letters

    • Which of the following is NOT a principal taxon?

  • Kingdom
  • Species
  • Phylum
  • Domain (correct)

    • What characterizes the Bryophyta division of the plant kingdom?

  • They are plants of very short stature (correct)
  • They are tall trees
  • They are flowering plants
  • They produce seeds

    • Which phylum includes snails, clams, and octopuses?

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

    What is a characteristic of the Porifera phylum?

    <p>They have asymmetrical bodies</p> Signup and view all the answers

    What is a characteristic of the Cnidaria phylum?

    <p>They have radial symmetry</p> Signup and view all the answers

    What is a characteristic of the Annelida phylum?

    <p>They have bilateral symmetry</p> Signup and view all the answers

    Which characteristic is shared by all Mollusca?

    <p>Bilateral symmetry</p> Signup and view all the answers

    Which division of the plant kingdom produces seeds?

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

    What is the main function of a dichotomous key?

    <p>To establish which taxa an organism belongs to</p> Signup and view all the answers

    Which of the following is a characteristic of Chordata?

    <p>Presence of a nervous system</p> Signup and view all the answers

    What is the main difference between Oviparous and Viviparous reproduction?

    <p>The development of offspring inside or outside the mother's body</p> Signup and view all the answers

    Which domain includes organisms with a vascular system?

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

    Which characteristic is unique to Mammals?

    <p>Mammary glands</p> Signup and view all the answers

    Study Notes

    Binominal System

    • Always written in italics
    • Genus in capital letter, species in lower case

    Taxonomic Ranks

    • Principal taxa: Kingdom, Phylum, Class, Order, Family, Genus, Species

    Plant Kingdom Divisions

    • Bryophyta: Mosses, very short stature
    • Filicinophyta: Ferns and horsetails
    • Coniferophyta: Pine trees
    • Angiospermophyta: Flowering plants

    Animal Kingdom Phylum

    • Porifera: Sponges
    • Cnidaria: Sea jellies and coral polyps
    • Platyhelminthes: Flatworms
    • Annelida: Segmented worms
    • Mollusca: Snails, clams, octopuses
    • Arthropoda: Insects, spiders, crustaceans
    • Chordata: All vertebrates

    Features of Plant Kingdom Divisions

    • Bryophyta: No vascular system
    • Filicinophyta: No seeds
    • Coniferophyta: Naked seeds and cones
    • Angiospermophyta: Vascular system, seed production in closed organs

    Phylum Characteristics

    • Porifera: Asymmetrical, water flows, diffuse oxygen
    • Cnidaria: Radial symmetry, polyp and medusa, carnivorous
    • Platyhelminthes: Bilateral symmetry, soft covering, feed on bacteria
    • Annelida: Bilateral symmetry, tube-shaped, segmented
    • Mollusca: Bilateral symmetry, some have shells, nervous system
    • Arthropoda: Symmetrical, segmented body, chitin
    • Chordata: Bilateral symmetry, distinct body shapes, complete digestive system

    Taxon Characteristics

    • Porifera: Asymmetrical, thin, no mouth or anus
    • Cnidaria: Radial symmetry, no brain or heart
    • Platyhelminthes: Bilateral symmetry, soft covering, incomplete digestive system
    • Annelida: Bilateral symmetry, tube-shaped, segmented
    • Mollusca: Bilateral symmetry, some have shells, nervous system
    • Arthropoda: Symmetrical, segmented body, chitin
    • Chordata: Bilateral symmetry, distinct body shapes, complete digestive system

    Chordata Sub-Phylum Characteristics

    • Fish: Bilateral symmetry, distinct body shapes, complete digestive system
    • Amphibians: Bilateral symmetry, moist skin, complete digestive system
    • Reptiles: Bilateral symmetry, dry scales, complete digestive system
    • Birds: Bilateral symmetry, wings, feathers, complete digestive system
    • Mammals: Bilateral symmetry, mammary glands, hair, complete digestive system

    Dichotomous Keys

    • Used to establish which taxa an organism belongs to
    • Example: Questions about vascular system, seeds, and naked seeds to determine plant kingdom division

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    Description

    This quiz covers the basics of biological classification, including the binomial system, principal taxa, and divisions of the plant and animal kingdoms.

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