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science test
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| Question | Answer |
|---|---|
| What is cell theory | a theory that states that living things are made up of cells. |
| What is the basic unit of living things | cell |
| where do cells come from | other cells |
| what is the third unit of organism | Organs |
| what is the second level of organization. | tissue |
| what is the the fourth level of organization. | organ system |
| What is the last level of organization | organism |