Biology Intro Vocab
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20 terms
Terms | Definitions |
|---|---|
 Biology | The study of life |
| controlled experiment | a test of the effect of a single variable by changing it while keeping all other variables the same |
| Cell Fractionation | technique in which cells are broken into pieces and the different cell parts are separated |
| Cell Culture | group of cells grown in a nutrient solution from a single original cell |
| Control | a standard against which other conditions can be compared in a scientific experiment |
| Data | information gathered from observations |
| Conflict of Interest | A situation in which a person in a position of responsibility or trust has competing professional or personal interests that make it difficult to fulfill his or her duties impartially. |
| Homeostasis | tendency of a system to maintain relative stability |
| Hypothesis | an educated guess |
| Inference | logical interpretation based on prior knowledge and experience |
| Metric System | a system of measurement based on the number 10 |
| Observation | use of one or more of the senses—sight, hearing, touch, smell, and sometimes taste—to gather information |
| Petri dish | a round flat dish used to observe things |
| Scientific method | a method of investigation involving observation and theory to test scientific hypotheses |
| Science | Search for understanding the natural world using inquiry and experimentation |
| SI units | multiples of 10; international system of units---modern form of the metric system |
| Stimulus | a change in an organism's surroundings that causes the organism to react |
| Theory | a hypothesis that is well supported by scientific data |
| Variable | a factor that changes in an experiment in order to test a hypothesis |
| Truth | real, actual; that which is considered to be supreme reality or have ultimate meaning. |
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