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Levels ~ CTOOS
Term | Definition |
---|---|
Cells | All living things start with these |
Tissue | A group of cells working together |
Organ | A group of tissues working together |
Organ System | Organs working together |
Level Order | Cell, tissue, organ, organ system |
Specialized | All cells have jobs |
First Level | Cells |
Second Level | Tissues |
Third Level | Organs |
Fourth Level | Organ System |
Heart | An example of an organ |
Organism | All living things |