Science Test Ch. 2
About this set
Created by:
mkofskey on October 14, 2009
Subjects:
Description:
A quiz that will help you for Dr. B's test on 10-15.
Classes:
vikings rock, CA Rox, Viking Chat, Columbus Academy, Viking People, CA homonyms
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23 terms
Terms | Definitions |
|---|---|
 organism | living thing |
| cell | the basic unit of structure and funciton in an organism |
| unicellular | single-celled organisms |
| multicellular | organisms that are composed of many cells that are specialized to do certain tasks |
| autotroph | an organism that makes its own food |
| heterotroph | an organism that cannot make its own food |
| homeostasis | the maintenance of stable internal conditions despite external conditions |
| stimulus | a change in an organism's surroundings that causes the organism to react |
| response | an action or change in behavior |
| 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 can arise from nonliving sources |
| classification | the process of grouping things based on their similarities |
| taxonomy | the scientific study of how living things are classified |
| binomial nomenclature | the naming system Carolus Linnaeus used |
| genus | a classification grouping that contains similar, closely related organisms |
| species | a group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce |
| prokaryote | organisms whose cells lack a nucleus |
| eukaryote | organisms with cells that contain nuclei |
| nucleus | a dense area in a cell that contains nucleic acids-the chemical instructions that direst the cell's activities |
| microscope | an instrument that makes small objects look larger |
| cell theory | a widely accepted explanation of the relationship between cells and living things |
| magnification | the ability to make things look larger than they are |
| resolution | another term for the sharpness of an image |
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