Ecology

3. An organism that captures, kills and eats another living organism
4. The process that changes N2 into a usable form
6. Organisms that are the first to colonize an area
7. This type of tree loses its leaves in the winter
10. Symbiotic relationship where one species benefits and the other isn't helped or harmed
12. Symbiotic relationship where both species benefit
14. The study of interactions between organisms and their environment
17. Organisms that break down dead organic matter into simpler substance
19. The specific role or function of an organism within its environment
20. An organism that lives in or on another organism

1. An organism that uses the sun's energy to create its own food
2. Water evaporation from plants
5. The gradual, sequential regrowth of an area following a disturbance
8. The study of human populations
9. Burning of these increases CO2 in the environment
11. This biome is characterized by permafrost
13. A series of interconnected food chains
15. The maximum population size of a species that an environment can support
16. Another name for a logistical growth curve
18. Another name for an exponential growth curve