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Levels
Term | Definition |
---|---|
Atoms | The smallest part of the cell. |
Molecules | Made of one or more atoms bonded together. |
Oraganelles | Composed of molecules, and carry out specific functions for each cell. |
Cells | Smallest functional unit of life. All living organisms are composed of one or more cells. |
Tissues | Make up of the second level of organization. They are formed by joining of the cells that have similar function or structure. |
Organs | A group of tissues that perform a specific function or structure. |
Organ System | A collection of organs that work together to perform a specific function. |
Organisms | A living thing that's able to perform simple acts of survival (Example=humans,plants,bacteria) |
Population | A group of organisms of the same species. |
Community | A group of interacting species sharing a populated environment.(Example: wolves,rabbits,and grass living in the same area) |
Ecosystem | Has organisms but also include the land ,water,air,rocks,and other non-living things in the area. |
Biome | A major regional or global community that is made up of similar ecosystems. (Example: rainforest,tundra,desert) |