| A | B |
|---|
| Biology | The study of living things |
| Organism | A living thing |
| Nutrition | The process by which organisms take in food and break it down so it can be used |
| Homeostasis | The condition of a stable internal environment in an organism |
| Transport | The process by which substancesmove into or out of cells or are distributed within cells |
| Respiration | The process of releasing energy in a complex series of chmical reactions |
| Synthesis | The chemical combiningof simple substances to create more complex substances |
| Growth | The process by which living organisms increas in size |
| Excretion | The romoval of waste substances from an organism |
| Regulation | All the activities that help maintain an organism's homeostasis |
| Reproduction | The process by which living things produce new organisms of their own kind |
| Metabolism | All the chemical reactions occurring within teh cells of an organism |
| Scientific Method | A universal approach to scientific problems |
| Hypothesis | A possible explanation for an observed set of facts |
| Controlled Experiment | an experiment set up in duplicate in which a single factor is changed in one setup but not the other |
| Variable | A single factor that is changed in a controlled experiment |
| Control | the setup in an experiment in which no factor was changed |
| Theories | Explanations based on facts that apply to a broad range of phenomena |
| Scientific Law | A statement that describes some aspect of a phenomenon |
| Light Microscope | Any device that enables us to see small details in an object by enlarging the object |
| Magnification | The ratio of the image size to the object size |
| Simple Microscope | a hand lens |
| Compound Microscope | a microscope with two lenses |
| Optical System | The lenses of a compound microscope |
| Mechanical System | The structural parts of a microscope that hold the specimin and lenses and permit focusing of the image |
| Light System | The mirror and diaphram in a microscope |
| Resolution | Hte ability of a microscope to show two points that are close together as seperate images |
| Phase-contrast Microscope | A form of compound microscopethat allows the details within living specimens to be seen without straining |
| Stereomicroscope | A microscope used in studying the external, or surface, structure of specimens |
| Transmission Electron Microscope | A microscope that uses electron beams rather than light and electromagnetic lenses rather than glass lenses |
| Scanning Electron Microscope | An electron microscope that uses an electron beam focused toa fine point and passed back and forth over the surface of the specimen |
| Centrifugation | A process in which materials of different densities are seperated from each other by suspending them in a liquid |
| Microdissection | dissection using tiny instruments to preform operations on living cells |
| Tissue Culture | A technique of maintaining living cells or tissues in a culture medium outside the body |
| Chromatography | Any technique that seperates substances in a mixture on the basis of their chemical properties |
| Electrophoresis | A technique for seperating substances made up of particales that have an electrical charge |
| Spectrophotometry | A method of identifiying and quantifying a substance by measuring the amount of light at different wavelengths that it absorbs |
