click below
click below
Normal Size Small Size show me how
Sience Defenitions
Levels of organizations
Term | Definition |
---|---|
Atoms | The smallest part of a cell. |
Molecules | Made of one or more atoms bonded (stuck) together. |
Cells | Smallest functional unit of life.All living organisms are composed of one or more cells. |
Tissues | Make up 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 performs a specific functions. (Example=the heart) |
Organ Systems | A collection of organs that work together to perform a specific function.(Example:the digestive system) |
Organism | 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. (Example:wolves) |
Organelles | Composed of molecules,and carry out specific functions for each cell. |
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 includes the land,water,air,rocks,and other nonliving things in the area. |
Biome | A major regional or global community that's made is up of similar ecosystems (Examples:rainforest,tundra,desert) |