Questions and Answers
What is a prokaryote?
What is a eukaryote?
A cell that contains a nucleus and membrane-bound organelles
What are the 6 kingdoms?
Archaebacteria, Eubacteria, Protista, Fungi, Plantae, Animalia
What are the 3 domains?
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What is taxonomy?
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What is a dichotomous key?
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What is an ecosystem?
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What is an autotroph?
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What is a heterotroph?
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What are archaebacteria?
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What are eubacteria?
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What is Protista?
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What is Fungi?
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What is Plantae?
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What is Animalia?
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What is bacteria?
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What is Archaea?
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What is Eukarya?
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What is reproduction?
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What is phylum?
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What is genus?
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What is a species?
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Who is Carolus Linnaeus?
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What is biotic?
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What is abiotic?
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What is classification?
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Study Notes
Prokaryotes and Eukaryotes
- Prokaryotes are unicellular organisms lacking a nucleus; they include bacteria and archaebacteria.
- Eukaryotes have a defined nucleus and membrane-bound organelles, encompassing a wide range of organisms from plants to animals.
6 Kingdoms of Life
- The six kingdoms are Archaebacteria, Eubacteria, Protista, Fungi, Plantae, and Animalia, classified based on cellular structure, mode of nutrition, and reproductive methods.
3 Domains of Life
- The three domains are Bacteria (unicellular prokaryotes), Archaea (extremophiles in harsh conditions), and Eukarya (organisms with eukaryotic cells).
Taxonomy and Classification
- Taxonomy is the science devoted to classifying, naming, and describing organisms, aiding in the organization of biological diversity.
- A dichotomous key is a tool utilized for identifying unknown organisms through a series of choices based on characteristics.
Ecosystems and Nutritional Strategies
- Ecosystems consist of both living (biotic) and nonliving (abiotic) components and their interactions, forming complex relationships.
- Autotrophs produce their own food, while heterotrophs obtain food from other organisms.
Kingdom Specifics
- Archaebacteria thrive in extreme conditions (high temperatures, salinity); they are unicellular prokaryotes.
- Eubacteria are characterized by their peptidoglycan cell walls and also consist of unicellular prokaryotes.
- Protista includes eukaryotes that do not fit into other kingdoms, displaying diverse forms of life.
- Fungi are eukaryotic heterotrophs that typically decompose dead organic matter, playing a critical role in nutrient cycling.
- Plantae comprises multicellular autotrophs with cellulose-based cell walls, primarily photosynthetic.
- Animalia consists of multicellular eukaryotic heterotrophs without cell walls, exhibiting various complexities in structure and function.
Taxonomic Hierarchy
- Phylum is a major taxonomic category grouping related organisms, sitting above class and below kingdom.
- Genus includes a group of closely related species; it is the first part of the scientific name in binomial nomenclature, capitalized.
- Species is defined as a group of organisms that can interbreed and produce fertile offspring, representing the most specific classification.
Pioneers in Classification
- Carolus Linnaeus, known as the "Father of Classification," developed the binomial nomenclature system, which standardizes the naming of species using Latin terms.
Biotic and Abiotic Factors
- Biotic factors encompass all living elements within an ecosystem, including plants, animals, and microorganisms.
- Abiotic factors refer to nonliving components such as air, water, sunlight, soil, temperature, and overall climate, which impact ecological dynamics.
Concept of Reproduction
- Reproduction is the biological process through which organisms produce offspring, ensuring species continuity.
Act of Classification
- Classification involves organizing entities into categories based on shared characteristics, facilitating easier study and understanding of biodiversity.
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Description
Test your knowledge of the six kingdoms and three domains of life with these helpful flashcards. Each card defines key biological terms, including prokaryotes, eukaryotes, and the classification system of life. Perfect for biology students looking to reinforce their understanding of taxonomy.