| A | B |
|---|
| Species | Group of organisms that can interbreed and make fertile offspring. |
| Population | Members of the same species, living in the same place at the same time. |
| Community | Interacting populations in a given area. |
| Niche | The job / role of an organism in its environment. |
| Mutualism | Both organisms benefit from the relationship. |
| Commensalism | One organism benefits from the relationship and the other isn't affected. |
| Parasitism | One organism benefits from the relationship and the other is harmed. |
| Habitat | The place where an organism lives its life. |
| Symbiosis | A close, permanent relationship between two species. |
| Predator-Prey | One organism hunts, kills, and eats another organism. |
| Producer | An organism that makes its own food. |
| Primary consumer | Organism that eats the producers. |
| Secondary consumer | Organism that eats the primary consumers |
| Tertiary consumer | Organism that eats the secondary consumers |
| Herbivore | Eats plants only |
| Carnivore | Eats animals (meat) only |
| Omnivore | Eats plats and animals |
