Questions and Answers
How are organisms classified into domains or kingdoms?
Organisms are classified into domains and kingdoms based on their cell type, their ability to make food, and the number of cells in their bodies.
What are the 3 domains of life?
Bacteria, Archaea, Eukarya.
What are 2 domains of Bacteria?
Autotrophs and heterotrophs.
What is an autotroph?
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What is a heterotroph?
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What are bacteria?
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What is a prokaryote?
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What is in the Domain Archaea and why is it unique?
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What are some Archaea?
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What are organisms in the Domain Eukarya?
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What are eukaryotes?
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What are the 4 kingdoms in the domain Eukarya?
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What are protists?
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What is fungi?
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What are plants?
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What are animals?
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What is classification?
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What is taxonomy?
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Why do biologists classify organisms?
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What is binomial nomenclature?
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What is genus?
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What is species?
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What is an example of species?
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What is binomial nomenclature format?
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What are the levels of classification?
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What are the characteristics of living organisms classified as Domain Bacteria?
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What are the characteristics of living organisms classified as Domain Archaea?
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What are the characteristics of living organisms classified as Domain Eukarya?
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Study Notes
Organism Classification
- Classification based on cell type, food production, and number of cells.
- Three main domains: Bacteria, Archaea, and Eukarya.
Domains of Life
- Bacteria: Prokaryotic, can be autotrophic or heterotrophic.
- Archaea: Prokaryotic, extremophiles, can be autotrophic or heterotrophic.
- Eukarya: Eukaryotic organisms with a nucleus.
Bacteria
- Bacteria are unicellular prokaryotes.
- They can be classified as autotrophs (self-feeders) or heterotrophs (cannot make their own food).
Archaea
- Unique organisms that thrive in extreme conditions (saline, hot, or gaseous).
- Also classified as autotrophs or heterotrophs.
Eukarya
- Consists entirely of eukaryotic organisms.
- Organisms have cells containing nuclei.
Kingdoms in Eukarya
- Four kingdoms: Protists, Fungi, Plants, Animals.
- Protists: Diverse eukaryotic organisms not fitting other categories (e.g., seaweed).
- Fungi: Mostly multicellular eukaryotes, except for yeast (unicellular).
- Plants: Range from giant trees to small mosses.
- Animals: Vast variety of multicellular organisms.
Classification and Taxonomy
- Classification groups organisms based on similarities, aiding study.
- Taxonomy is the scientific study of these classification systems.
Naming Conventions
- Binomial nomenclature: Two-part naming system (genus and species).
- Genus: First part of the scientific name, represents related organisms.
- Species: Second part, indicates a group capable of interbreeding.
- Example: Felis domesticus (genus: Felis, species: domesticus).
- Formatting: Italics, capitalize the first letter of the genus name.
Levels of Classification
- Hierarchical structure: Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.
- Mnemonic: "Did King Phillip Come Over For Good Spaghetti."
Characteristics of Domains
- Domain Bacteria: Unicellular prokaryotes, autotrophic or heterotrophic capabilities.
- Domain Archaea: Unicellular, prokaryotic, capable of autotrophy or heterotrophy.
- Domain Eukarya: Multicellular eukaryotes, capable of autotrophy or heterotrophy.
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Description
Test your knowledge on the classification of organisms with these flashcards. Learn about the three domains of life and explore different types of bacteria. This quiz is perfect for reinforcing your understanding of biological classification.