Classification of Living Things

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Questions and Answers

Which taxonomic level generally encompasses the greatest diversity of organisms?

  • Genus
  • Kingdom (correct)
  • Species
  • Order

According to binomial nomenclature rules, which two taxonomic ranks are italicized when writing a species name?

  • Family and Order
  • Kingdom and Species
  • Domain and Kingdom
  • Genus and Species (correct)

Carl Woese's RNA studies led to significant changes in prokaryotic classification. Which kingdom was divided as a result of these findings?

  • None of the above
  • Kingdom Protozoa
  • Kingdom Protista
  • Kingdom Monera (correct)

Which of the following sequences correctly represents the hierarchical classification of organisms, from broadest to most specific?

<p>Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species (B)</p> Signup and view all the answers

Which kingdom includes multicellular, eukaryotic organisms lacking cell walls, characterized by heterotrophic nutrition and complex organ systems?

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

Which kingdom is characterized by entirely microscopic, prokaryotic organisms, classified by cell shape (coccus, bacillus, spirillum), and has been divided into two separate kingdoms?

<p>Kingdom Monera (C)</p> Signup and view all the answers

Which of the following characteristics accurately describes the now-defunct Kingdom Monera?

<p>Unicellular organisms without a nucleus (B)</p> Signup and view all the answers

Why do scientists prefer using scientific names over common names when referring to organisms?

<p>They can apply to more than one organism (A)</p> Signup and view all the answers

Where are Eubacteria typically found?

<p>Nearly everywhere on every surface (D)</p> Signup and view all the answers

Based on the provided image, which of the following pairs of organisms are most closely related?

<p>Komodo Dragon and American Alligator (B)</p> Signup and view all the answers

Which of the following traits best describes organisms in the Kingdom Fungi?

<p>Multicellular organisms with filaments that absorb nutrients (C)</p> Signup and view all the answers

According to the provided image, which plant species is most closely related to the spikemoss?

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

Who is credited with developing the binomial system of classification?

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

Which kingdom includes unicellular, eukaryotic organisms with diverse movement mechanisms like flagella, cilia, and pseudopodia, exemplified by dinoflagellates?

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

Which of the following kingdoms contain species capable of conducting photosynthesis?

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

Flashcards

Level with Greatest Diversity?

Kingdom has the greatest diversity because it is the broadest level of classification, encompassing a wide range of organisms.

Italicized Names in Binomial Nomenclature?

Genus and species names are italicized in binomial nomenclature to indicate the scientific name of an organism.

Kingdom Divided by Woese?

Carl Woese's RNA studies divided Kingdom Monera into two separate kingdoms (Archaea and Bacteria).

Classification Hierarchy?

The correct hierarchy is Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.

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Characteristics of Kingdom Animalia?

Kingdom Animalia includes multicellular, heterotrophic eukaryotes without cell walls, adapted for movement and complex systems.

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Traits of Kingdom Monera?

Kingdom Monera consists of microscopic, prokaryotic organisms classified by cell shape (coccus, bacillus, spirillum) and divided into two kingdoms.

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Traits of Kingdom Fungi?

Kingdom Fungi consists of multicellular heterotrophs that absorb nutrients.

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Why Not Use Common Names?

Scientists avoid common names because they can be ambiguous and apply to multiple organisms unlike scientific names.

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Where Are Eubacteria Found?

Eubacteria are found nearly everywhere on every surface, inhabiting diverse environments.

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Closely Related Organisms?

Komodo Dragon and American Alligator are most closely related because they share the same order.

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Who Developed Binomial Nomenclature?

The binomial system of classification was developed by Linnaeus.

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Traits of Kingdom Protista?

Kingdom Protista includes unicellular, eukaryotic organisms with diverse movement mechanisms like flagella, cilia, and pseudopodia.

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Photosynthetic Kingdoms?

Plants and protists contain organisms that can conduct photosynthesis.

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Domain with ONLY Multicellular Organisms?

Eukarya is the domain that contains ONLY multicellular organisms.

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Branch of Biology for Classifying Organisms?

Taxonomy is the branch of biology devoted to the classification of organisms.

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Study Notes

  • The level with the greatest amount of diversity is the kingdom.
  • According to binomial nomenclature, the two names that are italicized are the genus and species.
  • Recent RNA studies by Carl Woese divided Kingdom Monera into two kingdoms.
  • The correct hierarchy of classification from broadest to most specific is: Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.
  • Kingdom Animalia contains multicellular, eukaryotic organisms lacking cell walls; they are heterotrophic, consume food for energy, are well-adapted for movement, and possess complex organ systems.
  • Kingdom Monera consists entirely of microscopic, prokaryotic organisms that can be either heterotrophic or autotrophic, typically classified by cell shape (coccus, bacillus, spirillum, etc.), and has recently been split into two unique kingdoms.
  • Kingdom Monera is characterized by unicellular organisms without a nucleus.
  • Scientists do not use common names because they can apply to more than one organism.
  • Eubacteria are found nearly everywhere on every surface.
  • The Komodo Dragon and American Alligator are the most closely related of the options provided.
  • Kingdom Fungi is characterized by multicellular organisms with filaments that absorb nutrients.
  • Clubmosses are the plant species most closely related to spikemoss.
  • The binomial system of classification was developed by Linnaeus.
  • Kingdom Protista is unicellular and eukaryotic, often having unique mechanisms for movement such as flagella, cilia, and pseudopodia; dinoflagellates are an example.
  • Plants and protists are the kingdoms that contain organisms capable of conducting photosynthesis.
  • Eukarya is the domain that contains ONLY multi-cellular organisms.
  • Taxonomy is the branch of biology devoted to the classification of organisms.
  • Kingdom Fungi includes mushrooms and yeast; most are saprobes and heterotrophic, living off decaying organic matter and are generally made of hyphae.
  • Kingdom Plantae contains eukaryotes with chloroplasts; they are autotrophs with cell walls made of cellulose.
  • Viruses are not considered to be living organisms and are, therefore, not contained within any kingdom.

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