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| Series of procedures to solve problems |
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| An explanation that can be tested |
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| standard to which the outcome of a test is compared |
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| something in an experiment that can change |
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| an explanation of things or events based on scientific knowledge |
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| smallest unit of an organism that carries on the functions of life |
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| proper conditions on the inside no matter what is going on on the outside |
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| Living things coming from nonliving things |
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| Living things coming only from living things |
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| Evolutionary story of an organism |
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| First and largest category |
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| group of similar cells working together |
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| Group of similar tissues working together |
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| Group of organs working together |
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| stuctures in eukaryotic cells |
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| gel like substance in the cell |
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| Directs all cell activities |
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| Cell with out a nucleus or membrane bound structures |
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| Cell with a nucleus and membrane bound structures |
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| extends from nucleus to cell membrane. a series of folded membranes that can process and move materials |
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| food is made. in plant cells |
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| sort and package proteins |
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| enzyme that breaks down things |
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| Strand of hereditary material surrounded by protein |
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| combination of substances where the individual substances retain their own properties |
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| always contains carbon and hydrogen |
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| regulate nearly all chemical reactions in a cell |
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| made of elemens other than carbon |
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| movement of molecules from an area with relatively more moluecules to another area with relatively fewer molecules |
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| movement of substances without energy |
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| movemtn of substances with energy |
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| Taking a substance in by surrounding it with the cell membrane |
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| vesicle fuses with cell mebrane then breaks out of it |
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| plant cells using light energy to make sugars |
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| when chemical reactions occur |
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| releasing energy in glucose molecules when not enough oxygen is available |
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| new oranism is produced from one organism |
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| nucleus divides into two identical nuclei |
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| structure in nucleus that contains hereditary material |
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| thickened identical strands |
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