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Definition
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Definition
| the basic unit of struture and function in an organism |
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| a type of organism that is made up of a single cell |
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| a type of organism that is made up of many cells |
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Definition
| the process of change that occurs during an organism's life to produce a more complex organism |
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Definition
| a change in an organism's surroundings that causes the organism to react |
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| an action or change in behavior that occurs as a result of a stimulus |
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Definition
| the mistaken idea that living things arise from nonliving sources |
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Definition
| an experiment in which all factors are identical except one |
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Definition
| any factor that can change in an experiment |
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Definition
| an organism that makes its own food |
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Definition
| an organism that cannot make its own food |
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Definition
| the maintenance of stable internal conditions despite changes in the surroundings |
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Definition
| the trace of an ancient organism that has been preserved in rock or other substance |
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Definition
| the process of grouping things based on their similarities |
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| the scientific study of how living things are classified |
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Definition
| the naming system for organisms in which each organism is given a two-part name - a genus name and a species name |
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Definition
| a classification grouping that consists of a number of similar, closely related species |
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| a group of similar organisms that can mate and produce fertile offspring in nature |
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Definition
| the process by which a species gradually changes of a long period of time |
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Definition
| a series of paired statements that describe the physical characteristics of different organisms |
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Definition
| an organism whose cells lack a nucleus and some other cell structures |
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Definition
| an organism with cells that contain nuclei and other cell structures |
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Definition
| the dense are in a eukaryotic cell that contains nucleic acids, the chemical instructions that direct the cell's activities |
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