| A | B |
|---|
| Biodiversity | The diversity of living things on Earth. The huge number of different types of living things on Earth |
| Biome | A group of similar ecosystems with the same general type of physical environment |
| Biosphere | The part of Earth where all life exists including all the: land water and air where living things can be found. The biosphere consists of many different biomes. |
| Community | All of the populations that live in the same area |
| Competition | A relationship between living things that depend on the same resources. |
| Ecosystem | All the living things in a given area together with the nonliving environment |
| Organ | A structure composed of one or more types of tissues |
| Organ System | A group of organs that work together to do a certain job |
| Organism | An individual living thing |
| Population | A group of organisms of the same species that live in the same area |
| Symbiosis | A close relationship between organisms of different species in which at least one of them gets something out of it |
| Tissue | A group of cells of the same kind |
| Unifying Principles of Biology | 4 Things: cell theory-gene theory-homeostasis-evolution |
| 6 Characteristics of living things | 1) Responds to Environment 2) Grows and Develops 3) Produces offspring 4) Maintain Homeostasis 5) Has complex chemistry 6) Is made of Cells |
