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Classification

TermDefinition
Classification The systematic grouping of different types of organisms by their shared characteristics.
Domain One of three divisions in a classification system based on different types of cells. The six kingdoms are grouped into three domains: Archaea, Bacteria, and Eukarya.
Archaea (Domain) A domain of single-celled microorganisms. These microbes are prokaryotes, meaning they have no cell nucleus. They are found in harsh environments.
Bacteria (Domain) A domain of single-celled microorganisms. These microbes are prokaryotes, meaning they have no cell nucleus. They are found everywhere.
Eukarya (Domain) A domain of organisms having cells each with a distinct nucleus within which the genetic material is contained.
Eukaryote An organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus.
Prokaryote Single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles
Protista Includes eukaryotic organisms that cannot be classified as a plant, animal, or fungus. They are mostly unicellular, but some, are multicellular. Part of Domain Eukarya.
Kingdom Fungi Includes multicellular organisms such as mushrooms, molds and single-celled yeasts. Part of Domain Eukarya.
Kingdom Plantae Includes multicellular organisms, such as trees, grass, and moss that are capable of photosynthesis capturing energy from the sun. Part of Domain Eukarya.
Kingdom Animalia Includes multicellular organisms, from human and lions to insects and microbes, that rely on food for energy. Part of Domain Eukarya.
Autotrophic An organism that captures energy from sunlight and uses it to produce energy-rich carbon compounds, usually through the process of photosynthesis.
Heterotroph An organism that consumes other organisms to get energy.
Sexual reproduction A type of reproduction in which two cells combine to form offspring. (Having two parents)
Asexual reproduction The process by which a single organism produces offspring that have the same genetic material. (Having one parent)
Kingdom Archaebacteria Includes microscopic single-celled organisms with a distinctive cell structure that allows them to live in extreme environments. Part of Domain Archaea.
Kingdom Eubacteria Includes microscopic single-celled organisms found in many environments. Bacteria can be associated with disease in other organisms. Part of Domain Bacteria.
Created by: DDenney