Term
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Definition
| This is what all organisms consist of. Matter is anything that takes up space and has mass. |
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Term
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Definition
| A substance that cannot be broken down to other substances by chemical reactions. |
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Term
| How many elements are recognized today? |
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Definition
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Term
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Definition
A substance consisting of of two or more elements combined in a fixed ratio.
Ex: Table Salt (NaCl) |
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Term
| Life requires about ___ chemical elements. |
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Definition
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Term
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Definition
| Elements that are required by an organism in only minute quantities |
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