Ecology Crossword

1. Independent factors that occur regardless of the population
3. the biochemical cycle that describes the movement of phosphorus
7. relationship between living things that depend on the same resources in the same place and at the same time
8. type of symbiotic relationship in which both species benefit
9. Organism that feeds on dead, decaying, animals
12. aquatic ecosystem in the salt water of the ocean
15. Dependent factors triggered by overpopulation or overcrowding
16. type of animal behavior in which social animals live and work together for the good of the group
18. the biochemical cycle by which carbon is exchanged

1. organism that breaks down the remains of dead organisms and other organic wastes
2. aquatic ecosystem such as a pond, lake, stream, or river in which the water contains little or no salt
4. symbiotic relationship in which one species benefits while the other species is not affected
5. symbiotic relationship in which one species benefits while the other species is harmed
6. all the living factors in an area
10. all the nonliving factors in an area
11. close relationship between organisms of different species in which at least one of the organism benefits from the relationship
13. model describing how nitrogen moves from the atmosphere to the soil, to living organism, and then back to the atmosphere
14. organism that consumes other organisms foods
17. organism that makes its own food through a chemical reaction
19. a habitat supplying the factors necessary for the existence of an organism or species;