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Lesson 15
Cell Growth
| Term | Definition |
|---|---|
| Unicellular | one-celled organisms- Bacteria, viruses, and protists are considered unicellular |
| Multicellular | an organism composed of many cells |
| Prokaryotic | cells that lack a nucleus |
| Eukaryotic | cells that have a nucleus bound by a membrane |
| Tissues | a group of cells that perform a specific function |
| Organs | groups of tissues working together for a specific function- examples are: liver, kidneys, bladder, etc. |