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when scientists study the natural world and propose explanantions based on the evidence they gather |
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use this to measure volume of liquids |
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the step of the water treatment process when chlorine is added to kill pathogens |
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a chemical that kills or slows the growth of bacteria in a cell |
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a disease that causes cells to multiply uncontrollably and destroy healthy tissue |
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a jelly like substanse in a cell that supports then organelles |
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packages proteins in a cell |
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controls all the activities in a cell |
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break down foods in the animal cell |
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transports cells to the other parts in the cell |
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female sex cell in a plant |
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the male sex cell in humans or animals |
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the female sex cell in humans or animals |
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remains or traces of ancient life |
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the process of how a species changes over time |
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occurs when the sperm and the egg unite |
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the first step of mitosis |
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the end of mitosis that ends in two nuclei |
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the measure of visual cloudiness |
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the part of water treatment process when chemicals are added to coagulate the particles |
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the mixing of water to release disolved gasses and suspend particles |
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