Ecology Vocabulary

1. How an organism makes its living and interacts with the biotic and abiotic factors in its habitat.
5. An organism that a parasite lives, with, in, or an, and provides a source of energy or a suitable environment for the parasite to live.
9. A type of symbiosis between two species in which one species benefits and the other species in neither helped nor harmed.
11. The struggle between organisms to survive as they attempt to use the same limited resources in the same place at the same time.
12. The number of individuals in an area of specific size.
13. A living or once living part of an organism’s habitat.
14. An organism that is killed and eaten by another organism in a predation interaction.
16. A nonliving part of an organism’s habitat.
19. All the different populations that live together in a particular area.
22. All the members of one species living in the same area.
23. The organism that benefits by living, with, on, or in a host in a parasitism interaction.
24. A type of symbiosis in which one organism lives with, on, or in a host and harms it.

2. The community of organism that live in a particular area, along with their nonliving environment.
3. A type of symbiosis in which both species from living together.
4. The process by which organisms that are best adapted to their environment are most likely to survive and reproduce.
6. An environmental factor that causes a population to decrease in size.
7. The largest population that a particular environment can support.
8. Any relationship in which two species live closely together and that benefits at least one of the species.
10. An environment that provides the things a specific organism needs to live, grow and reproduce.
15. Movement of individuals out of a population’s area.
17. Movement of individuals into a populations’s area.
18. The study of how organisms interact with each other and their environment.
20. A group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce.
21. An inherited behavior or physical characteristic that helps and organism survive and reproduce in its environment.
22. The organism that does the killing in a predation interaction.