Unit 5 Vocabulary

2. symbiotic relationship in which one organism benefits and the other is unaffected
5. Examples include the rainforest, desert, tundra
9. relationship in which two species live close together
10. symbiotic relationship in which one organism lives on or inside another organism and harms it
11. limiting factor that depends on population density
15. a single species that is not usually abundant in a community but have strong control over the structure of a community
17. A group of individuals of the same species that live in the same area
18. Examples include sunlight, water, and temperature
19. factors factor that causes population growth to decrease
20. Scientific study of interactions among organisms and between organisms and their environment
21. symbiotic relationship in which both species benefit from the relationship

1. largest number of individuals of a species that an environment can support
3. Part of Earth in which life exists
4. limiting factor that affects all populations similar ways, regardless of population density
6. refers to how many different kinds of living things exist together in an environment
7. growth pattern in which a populatons growth slows and then stops
8. different populations that live together in an area
12. growth pattern in which the individuals in a population reproduce at a constant rate
13. All the organisms that live in a place, together with their nonliving environment
14. Examples include plants and animals
16. a group of similar organisms that can breed and produce fertile offspring