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Ch.1 The Sience
| Question | Answer |
|---|---|
| organized way of using evidence to learn about the natural world; body of knowledge that scientists have built up after years of using this process | science |
| use of one or more of the senses to gather information | observation |
| evidence; information gathered form observations | data |
| logical interpretation based on prior knowledge and experience | inference |
| possible explanation for a set of observations or possible answer to a scientific question | hypothesis |
| hypothesis stating that life could arise from nonliving matter | spontaneous generation |
| a test of the effect of a single variable by changing it while keeping all other variables the same | controlled experiment |
| factor in an experiment that a scientist purposely changes | manipulated variable |
| factor in an experiment that a scientist wants to observe, which may change in response to the manipulated variable | responding variable |
| well-tested explanation that unifies a broad range of observations | theory |
| science that seeks to understand the living world | biology |
| collection of living matter enclosed by a barrier that separates the cell from its surroundings; basic units of all forms of life | cell |
| process by which cells from two different parents unite to produce the first cell of a new organism | sexual reproduction |
| set of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes | metabolism |
| a signal to which an organism responds | stimulus |
| process by which organisms maintain a relatively stable internal environment | homeostasis |
| change in a kind of organism over time | evolution |
| decimal system of measurement based on certain physical standards and scaled on multiples of 10 | metric system |
| device that produces magnified images of structures that are too small to see with the unaided eye | microscope |
| microscope that allows light to pass through a specimen and uses two lenses to form an image | compound light microscope |
| microscope that forms an image by focusing beams of electrons onto a specimen | electron microscope |
| group of cells grown in a nutrient solution from a single original cell | cell culture |
| technique in which cells are broken into pieces and the different cell parts are separated | cell fractionation |
Created by:
Hagi131096
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