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Classification

Classification for Biology (8th grade)

TermDefinition
Binomial Nomenclature The system of naming organisms scientifically, developed by Carolus Linnaeus; consists of the genus and species names
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 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 organism
Multicellular Composed of more than one cell
Heterotrophic An organism that must consume other organisms for energy
Autotrophic An organism that obtains its energy from an abiotic source such as sunlight or inorganic chemicals
Chemotrophic 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: Doerre1018
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