Across
- 4. ability of the biosphere to maintain its balance indefinitely
- 5. condition in which there are not that many of that type of animal left in the world
- 6. use of organisms to remove or neutralize hazardous wastes in the environment
- 8. change in global temperatures and weather patterns over time
- 9. measurement of human demand on the earth's resources
- 11. individuals joining a population
- 14. type of fuel such as coal and oil
- 15. the stage of succession characterized by organisms first colonizing a previously barren ecosystem
- 18. stable, long-lived species that mark the end of succession and characterize a mature ecosystem
- 19. the type of cycle in which specific chemicals move through the living and nonliving parts of the biosphere
- 20. the type of succession that takes place in a disturbed area with soil and perhaps a few plants
- 21. the term relating to population that describes the number of organisms in a defined unit of area
- 22. process in which water vapor returns to liquid state
- 24. the type of factor within an ecosystem that prevents a population from growing beyond a certain size
- 26. the adjective used to describe a type of growth in which the population size multiplies at a constant rate at regular intervals
- 27. physical portion of an ecosystem preferred by an organism
- 29. the process in which water changes from liquid to vapor state
Down
- 1. how water exits a plants leaves
- 2. condition in which a species is susceptible to endangerment
- 3. maximum population size that a particular geographic area can support
- 7. condition when a body of water is nutrient rich, leading to an overgrowth of algae
- 10. the type of species that moves into a new habitat and then competes with native species for resources
- 12. falling products of condensation from the atmosphere
- 13. a type of gas that can trap heat in the earth's atmosphere
- 16. individuals leaving a population
- 17. the types of species that first colonize an area during primary succession
- 23. condition in which there are no long any living members of a species
- 25. what happens to inorganic nitrogen when it is changed into nitrogen compounds that living things can use
- 28. underground reservoir of water