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Classification Vocab

TermDefinition
Binomial Nemenclature The system of naming organisms scientifically, developed by Carolus Linnaeus; consists of the genus and species name.
Kingdom The highest level of taxonomic classification beneath that of the three domains.
Phylum The taxonomic level below kingdom and above class.
Class The taxonomic level below phylum and above order.
Order The taxonomic level below class and above family.
Family The taxonomic level below order and above genus.
Genus The taxonomic level below the family and above the species; the first part of the binomial nomenclature.
Species A group of organisms that can interbreed to generate fertile offspring.
Cladogram A branching diagram representing a hypothesis about the evolutionary descent of groups of organisms from a common ancestor.
Dichotomous Key A tool used to classify an organism through a series of questions with only two possible answers.
Ancestry (ancestries) The lineage of successive parents and offspring that leads to an organism or species.
Cladistics A classification system based on shared characteristics between groups of organisms and their common ancestor.
Unicellular Composed of a single cell.
Multicellular Composed of more than one cell.
Heterotrophic (heterotroph) An organism that must consume other organisms for energy.
Autotroph (autotrophic) An organism that obtains its energy from an abiotic source such as sunlight or inorganic materials.
Chemotrophic (chemotroph) An organism that can produce its own nourishment through the process of oxidizing inorganic compounds.
Eukaryotic Cell A cell with a nucleus and membrane-bound organelles.
Prokaryotic Cell A cell lacking a nucleus or any other membrane-enclosed organelle.
Sexual Reproduction The reproductive process involving two parents whose genetic material is combined to produce a new organism different from themselves.
Asexual Reproduction A method of reproduction that requires only one parent and produces offspring identical to the parent.
Phylogeny The evolutionary development of a species.
Created by: Doerre414