Ecology Vocabulary

1. An organism that feeds on other organisms
2. A relationship between different organisms that live together
4. The movement of carbon through abiotic factors in an environment
7. An organism that eats by breaking down dead organic matter
8. Relationship between a dog and a flea
10. Living things in an environment, such as plants and animals
11. The cyclic movement of nitrogen
15. A group of organisms living in one place
17. The largest ______ of the world are aquatic, grasslands, deserts, tundra, and forests
18. The number of organisms an environment can hold
20. Relationship between a lion and a gazelle
21. A mutually beneficial relationship between organisms
22. The variety of species in a particular habitat or ecosystem
23. An autotrophic organism that creates its own food

1. A group of organisms living in the same habitat
3. Relationship where one organism benefits and one is not affected
5. Long-term weather conditions
6. Replacement
9. The cycling of phosphorus through an environment
12. Non-living things in an environment. Sunlight, water, and dirt are examples.
13. A triangle-shaped diagram that shows the flow of energy through an ecosystem
14. A community of organisms and their environment
16. The desert is the _______ for a cactus
19. Each of several hierarchic levels in an ecosystem