| A | B |
|---|
| environment | the surroundings of an organism-living and non-living |
| ecology | the study of the relationships and interactions of living things with one another and the environment |
| biotic factor | living things and their products |
| abiotic factor | non-living things in an environment |
| ecosystem | a group of plants, animals and microbes |
| symbiosis | relationship of organisms of different species in a long-term relationship |
| mutualism | both organisms benefit from the relationship |
| parasitism | a parasite lives on or in a host |
| predator | animal that kills and eats other animals |
| host | where a parasite lives |
| prey | the animal that is killed |
| habitat | where an organism lives |
| oikos | the Greek word for home |
| commensalism | two species with one benefiting from the relationship-the other is unharmed |
