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BiO GLOSSARY
A-C
| Term | Definition |
| Arm | supports the tube |
| Base | the bottom of the microscope, used for support |
| Biology | the science of life or living matter in all its forms and phenomena, esp. with reference to origin, growth, reproduction, structure, and behavior. |
| Control Group | serves as a standard by which things can be measured/ compared. (the control group will not change) |
| Controlled Experiments | an experiment that has only one changing variable |
| Cytology | the study of cells |
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D-G
| Term | Definition |
| Dependent Variable | the variable in an experiment that changes |
| Development | a series of changes an organism undergoes as it matures into an adult |
| Diaphragm or Iris | The diaphragm has different sized holes and is used to vary the intensity and size of the cone of light that is projected upward into the slide. |
| Evolution | The study of the ways in which present-day organisms have been produced |
| Eyepiece Lens | the lens at the top that you look through. They are usually 10X or 15X power |
| Generalization | made based on evidence gathered |
| Growth | using materials from the surroundings to make more of oneself |
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H-L
| Term | Definition |
| Homeostasis | the self-adjusting balance w/i an organism in order to maintain proper conditions when the environment changes. |
| Hypothesis | is a possible explanation for a set of observations or a tentative answer to a scientific question. |
| Inductive Conclusion | generalization that summarizes many concurrent observations. |
| Inference | logical interpretation based on prior knowledge and experience (including observations) |
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M-Q
| Term | Definition |
| Manipulated/Independent Variable (X-axis) | the aspect that is changed in an experiment |
| Metabolism | the combinations of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes |
| Objective Lenses | Usually you will find 3 or 4 objective lenses on a microscope. They almost always consist of 4X, 10X, 40X and 100X powers. The shortest lens is the lowest power, the longest one is the lens with the greatest power. The high power objective lenses are retractable (i.e. 40XR). This means that if they hit a slide, the end of the lens will push in (spring loaded) thereby protecting the lens and the slide. |
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R-Z
| Term | Definition |
| Quanitative | data that involves measuring and is expressed numerically. |
| Qualitative | data that is descritive but not numerical |
| Responding Variable (Y-axis) | any change that results from the manipulation of the independent variable |
| Revolving Nosepiece or Turret | This is the part that holds two or more objective lenses and can be rotated to easily change power. |
| Scientific Method | a series of logical steps used to gain knowledge or establish principles |
| Stage | The flat platform on a microscope where you place your slides. |
| Taxonomy | The study of how organisms are classified |
| Tube | Connects the eyepiece to the objective lenses |
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, Sep 21 2007, 10:58 AM EDT
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