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vocab

classification systems vocab

TermDefinition
Organism an individual animal, plant, or single-celled life form.
cell the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.
unicellular consisting of a single cell
multicellular having or consisting of many cells.
stimulus anything that makes an organism or a part of an organism react in some way
Response An action or change in behavior that occurs as a result of a stimulus.
Spontaneous generation the mistaken idea that living things arise from nonliving sources.
Homeostasis the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
Species a group of organisms that can reproduce naturally with one another and create fertile offspring.
Classification the arrangement of animals and plants in taxonomic groups according to their observed similarities (including at least kingdom and phylum in animals, division in plants, and class, order, family, genus, and species).
Genus a principal taxonomic category that ranks above species and below family, and is denoted by a capitalized Latin name, e.g. Leo.
Binomial Nomenclature a system of nomenclature in which each species of animal or plant receives a name of two terms of which the first identifies the genus to which it
Taxonomy the science of naming, describing and classifying organisms
Domain the highest taxonomic rank in the hierarchical biological classification system,
Evolution the change in the characteristics of a species over several generations
Convergent Evolution the process whereby distantly related organisms independently evolve similar traits to adapt to similar necessities.
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