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7M Chapter 1
Chapter 1
| Term | Definition |
|---|---|
| organism | living thing |
| cell | basic unit of structure and function in an organism |
| unicellular | made of a single cell |
| multicellular | consisting of many cells |
| stimulus | change in an organism's surroundings that causes the organisms to react |
| response | an action or change in behavior that occurs as a result of a stimulus |
| development | the process of change that occurs during an organism's life to produce more complex organism |
| spontaneous generation | the mistaken idea that living things arise from nonliving sources |
| controlled experiment | an experiment in which all identical except one |
| autotroph | an organism that makes its own food |
| heterotroph | an organism that cannot make its own food |
| homeostasis | keeping body temperature |
| classification | process of grouping things based on their simalarities |
| taxonomy | study of new things are classifed |
| binomial nomenclature | naming system |
| genus | classification grouping that contains similar, closely related organisms |
| species | group of similar organisms that can mate with each other, produce, and mate again, and produce again |
| evolution | species gradually change over time |
| prokaryote | cell that lacks a nucleus |
| eukaryote | cell that has a nucleus |
| nucleus | dense area in a eukaryote cell that contains nucleic acids |