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Definition
| (1)An atom's central region, made up of protons and neutrons; (2) A membrane-bound organelle that contains the cell's DNA and has a role in processes such as growth,metabolism,and reproduction. |
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Definition
| A sequence of organism within a community, each of which uses the next, lower member of the sequence as a energy source. |
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Definition
| A subatomic particle that has no charge and is found in the nucleus of an atom. |
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Term
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Definition
| A well-tested explanation of some aspect of the natural world. |
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Definition
| Amount of space occupied by an object. |
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Definition
| An object that has mass and occupied space. |
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Definition
| Process which changes a substance's form without producing a new substance. |
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Definition
| Subatomic particle with a postive charge found in the nucleus of an atom. |
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Definition
| The particle by which matter is neither created nor destroyed when it undergoes a chemical reaction. |
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Definition
| The smallest particle of an element that can exist either alone or in combination. |
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