Biology: Six Kingdoms of Life

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Questions and Answers

What are the six kingdoms of life?

  • Animalia (correct)
  • Eubacteria (correct)
  • Protista (correct)
  • Plantae (correct)
  • Fungi (correct)
  • Archaebacteria (correct)

Which level of classification contains all the others?

domain

What is the smallest taxonomic group that contains organisms of different species?

genus

Which is a characteristic of a carrot plant?

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

What are the three domains of life?

<p>Bacteria, Archaea, and Eukarya</p> Signup and view all the answers

Which kingdom is made up of mostly, but not exclusively, unicellular organisms?

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

Which characteristic proves Lactobacillus acidophilus is from the specific kingdom Eubacteria?

<p>It has peptidoglycan.</p> Signup and view all the answers

Which is the best characteristic that distinguishes the kingdom Archaebacteria from the kingdom Eubacteria?

<p>cell wall structure</p> Signup and view all the answers

Which characteristics are used to differentiate between the six kingdoms?

<p>Body type (A), Cell type (B), Cell structure (C), Nutrition (D)</p> Signup and view all the answers

Which domains contain only one cell type?

<p>Bacteria and Archaea</p> Signup and view all the answers

Flashcards

Domain

A taxonomic category that encompasses all living organisms grouped based on shared characteristics.

Taxonomy

The study of classifying organisms

Species

A group of closely related organisms that can interbreed and produce fertile offspring.

Genus

A classification level that groups together closely related species.

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Animalia

The kingdom of life composed of multicellular, eukaryotic organisms that generally obtain nutrition through consuming other organisms.

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Protista

The kingdom of life composed of simple, typically unicellular, eukaryotic organisms.

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Plantae

The kingdom of life composed of multicellular, eukaryotic organisms that can produce their own food through photosynthesis.

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Eubacteria

The kingdom of life composed of unicellular prokaryotic organisms, including bacteria that cause disease.

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Archaebacteria

The kingdom of life composed of single-celled prokaryotic organisms that often thrive in extreme environments.

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Eukarya

A domain of life composed of organisms with cells that possess a nucleus and other membrane-bound organelles.

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Study Notes

Kingdoms of Life

  • Six kingdoms of life include Archaebacteria, Eubacteria, Animalia, Protista, Fungi, and Plantae.
  • Classification is hierarchical, with domain being the highest level containing all other classifications.

Taxonomic Classification

  • Genus is the smallest taxonomic group that includes organisms of different species.
  • Domains of life categorized into Bacteria, Archaea, and Eukarya.

Characteristics of Organisms

  • Carrot plants are characterized as eukaryotic organisms.
  • Protista kingdom primarily comprises unicellular organisms but may include multicellular forms as well.

Eubacteria Distinctions

  • Lactobacillus acidophilus exemplifies Eubacteria by possessing a cell wall made of peptidoglycan, critical for digestion and found in sources like yogurt.
  • Key distinguishing feature of Archaebacteria compared to Eubacteria is cell wall structure.

Differentiating Characteristics

  • Classification among the six kingdoms relies on body type, cell type, cell structure, and nutrition.
  • Bacteria and Archaea domains consist of only one cell type, indicating simplicity in cellular structure.

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