| A | B |
|---|
| atom | smallest particle of matter |
| biome | a distinctive geographic region with the same climate, plants and animals |
| biosphere | al the areas of the earth that supports life |
| cell | the living community and important nonlliving matter in an area |
| community | all the different populations living in a given area |
| compound | two or more elements chemically bonded together |
| ecosystem | the living community and important nonliving matter in an area |
| element | made up on only 1 type of atom |
| organ | a group of tissues working together |
| organelle | this performs a specific task for a cell |
| organism | expresses all the characteristics of life |
| organ system | a group of organs working together |
| population | the number of organisms in the same species living in a given area |
| species | a group of organisms that can produce fertile offspring |
| tissue | a group of cells working together |
