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Chapter 1
living things
Term | Definition |
---|---|
organsim | a living thing |
cell | the basic unit of structure and function in an organism |
unicellular | made of a single cell |
multicellular | made up of many cells |
stimulus | a change in an organisms surroundings that cause the organs to react |
response | an action or change in behavior that occurs as a result of a stimulus |
development | the process of a change that occurs during an organisms life to produce a more complex life. |
spontaneous generation | the mistaken idea that living things arise from nonliving things sources. |
controlled experiments | an experiment in which all factors are identical except one |
autotroph | anorganism who makes its own food |
heterotroph | organism who cant make its own food |
homeostasis | the maintanance of a stable internal condition |
classification | The process of grouping things based on their similarities |
Taxonomy | The scientific study of how living things are classified |
Binomial Nomenclature | The system for naming organisms in which each organism is given a unique, two-part scientific name indicating its genus and species |
genus | A classification grouping that consist of a number of similar. closely related species |
species | A group of similar organisms that can mate with each other and produce offspring that can los mate and reproduce |
evolution | The process by which species gradually change over time |