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chapt. 19 vocab
| Term | Definition |
|---|---|
| colonial organisms | a group of cells that are permanently associated but that do not communicate with one another |
| aggregation | temporary collection of cells that come together for a period of time and then separate |
| multicellular | organism composed of many cells that are permanently associated with one another |
| differentiation | process by which cells develop a specialized form and function |
| tissue | distinct group of cells with similar structure and function |
| organ | which is a specialized structure with a specific function |
| organ system | various organs that carry out a major body function |
| protists | eukaryotes that are not fungi, plants, or animals |
| hyphae | slender strands of fungi |
| vascular tissue | made up of specialized cells that play a role in transporting water and dissolved nutrients |
| invertebrates | lack a backbone |
| vertebrates | have a backbone |