| A | B |
|---|
| Environment | everything in an organisms surroundings |
| Eco-system | The community and its environment |
| Organism | a living thing |
| Niche | the role an organism plays |
| Biotic | living |
| A-biotic | non-living |
| Ecology | study of the relationships between living things and their surroundings |
| Ecologist | a person who studies relationships between organisms |
| Water Cycle | the movement of water through an eco-system |
| Hydrological Cycle | scientific name for Water cycle |
| Pollution | occurs when a substance that is harmful is added to the environment |
| Carbon Cycle | Carbon travels through an eco-system when organisms eat each other |
| Food chain | a series of organims that rely on the organism before it for food |
| Food Web | a series of interconnected food chains |
| Pyramid of Numbers | a model that shows the structure of the food chain |
| Pyramid of biomass | This model shows the total mass of all organisms |
| Life Cycle | a predictable pattern of changes during an organisms life |
| Energy Cycle | the movement of energy starting from the sun and moving from one organism to the next |
| Energy Flow | the movement of energy throughout an eco-system |
| symbiosis/symbiotic relationships | a relationship between two species that may benefit one or both partners |
| Commensalism | One benefits the other is not harmed nor benefits |
| Mutualism | both partners benefit |
| Parasitism | one benefits the other is harmed |
