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sc. ch2 1&2
6th grade science ch. 2 parts 1 and 2
| Question | Answer |
|---|---|
| cell | the basic unit or structure and function in living things |
| unicellular | made of a single cell |
| multicellular | consisting of many cells |
| stimulus | a change in an organisms surroundings that causes the organism to react |
| response | an action or change in behavior that occurs in reaction to a stimulus |
| organism | a living thing |
| homeostasis | the maintenance of stable internal conditions in an organism |
| development | the process that occurs during an organisms life to produce a more complex organism |
| autotroph | an organism that makes its own food |
| heterotroph | an organism that cannot make its own food |
| spontaneous generation | the mistaken idea that living things arise from nonliving things |
| binomial nomenclature | the system for naming organisms in which each organism is given a unique, two-part scientific name |
| classification | the process of grouping things based on their similarities |
| taxonomy | the scientific study of how living things are classified |
| genus | a classification grouping that consists of a number of similar closely related species |
| species | a group of organisms that are physically similar and can mate with each other and produce offspring |
| prokaryote | an organism whose cells lack a nucleus and some other cell structures |
| nucleus | the control center of a eukaryotic cell that directs the cells activities and contains the information that determines the cells form and function |
| eukaryote | an organism whose cell s contain nuclei |