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chapter 2
vocab
Question | Answer |
---|---|
organism | A living thing. |
cell | The basic unit of structure and function in living things. |
unicellular | Made of a single cell. |
multicellular | Consisting of many cells. |
stimulus | A change in an organism's surroundings that causes the organism to react. |
response | An action or change in behavior that occurs in reaction to a stimulus. |
development | The process of change that occurs during an organism's life to produce a more complex organism. |
spontaneous generation | The mistaken idea that living things arise from nonliving sources. |
autotroph | An organism that makes its own food. |
heterotroph | An organism that cannot make its own food. |
homeostasis | The maintenance of stable internal conditions in an organism. |
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 name. |
genus | A classification grouping that consists of a number of similar |
species | A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce. |