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Definition
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Definition
| basic unit of structure and function in an organism |
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| organisms composed of many cells |
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| the combination of chemical reactions through which an organism builds up or breaks down materials |
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| a change in an organisms surroundings that causes the organism to react |
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Definition
| an action or change in behavior |
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| the process of change that occurs during an organism's life, producing a more complex organism |
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| involves only 1 parent and produces offspring that are identical to the parent |
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| involves two parents and combines their genetic material to produce a new organism that differs from both parents. |
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| the mistaken idea that living things can arise from nonliving sources |
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| a series of tests that are identical in every respect except for one factor |
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| organisms that cannot make their own food |
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| the maintenance of stable internal conditions |
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| the process of grouping things based on their similarities |
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| the scientific study of how organisms are classified |
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| the systems for giving organisms a unique, two-part scientific name |
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| a classification grouping that contains similar, closely related organisms |
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| a group of similar organisms that can mate with each other and produce |
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Definition
| unicellular organisms whose cells lack a nucleus |
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Definition
| a dense area in a cell that contains nucleic acids |
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Definition
| organisms with cells that contain nuclei |
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Definition
| the process of change over time |
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Definition
| shows probable evolutionary relationships among organisms, and the order in which specific characteristics may have evolved |
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| shared derived characteristics |
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| a trait that the common ancestor of a group had, and passed on, to its descendants |
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Definition
| the process by which unrelated organisms evolve similar characteristics that are similar. |
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