| A | B |
|---|
| Ecosystem | all the living and nonliving things that interact in an area |
| Organism | living thing that obtains food water and shelter from its surroundings |
| Habitat | place where organism lives that provides the things it needs |
| Biotic | living part of ecosystem |
| Abiotic | nonliving part of ecosystem |
| Species | group of organisms that are physically similar |
| Population | all the members of one species in one area |
| Communities | all the different populations that live together |
| Ecology | study of how living things interact with each other and their environment |
| Data analysis | observing the data and making inferences |
| Natural selection | process by which individuals that are better adapted to the environment are more likely to survive and reproduce |
| Adaptations | behaviors and physical characteristics of a species that allow them to live successfully in their environment |
| Competition | struggle between organisms to survive in with limited resources |
| Predation | when one organism kills and eats another organism |
| Predator | organism that does the killing |
| Prey | organism that gets killed/eaten |
| Symbiosis | relationship between two species that benefits at least one of them |
| Mutualism | type of symbiosis in which both species benefit |
| Commensalism | A type of symbiosis in which one species benefits but the other is not harmed |
| Parasitism | type of symbiosis in which one species benefits (parasite) |
