Across
- 2. limiting factor that affects all populations in similar ways, regardless of the population density
- 3. an assemblage of different populations that live together in a defined area
- 4. an abiotic factor is any nonliving part of the environment, such as sunlight, heat, precipitation, humidity, wind or water currents, and soil type
- 7. movement of individuals into an area occupied by an existing population
- 8. one of the three gases in greenhouse gases that starts with an M
- 10. dry, extreme temperature changes, and low precipitation
- 14. limiting factors that operate more strongly when population density is high
- 15. captures energy from nonliving sources and convert it into forms living cells can use
- 16. the biosphere includes all life on Earth, from underground bacteria, rain forest trees, ocean-going whales, airborne mold spores, and humans.
- 18. movement of individuals out of an area
- 19. the first producers of energy-rich compounds that can be used later by other organisms
- 20. all of Earth’s fresh water and salt water, including water vapor and rain in the atmosphere
Down
- 1. the number of individuals of a species that an environment can support
- 5. on of the three main distribution patterns ex. deer
- 6. a biotic factor is any living part of the environment with which an organism might interact
- 9. all the gases that surround Earth
- 11. hot and wet year round; poor soil
- 12. chemical energy powers production of carbohydrates
- 13. includes all the rocks, continents, and the ocean floor on Earth. Deep inside the Earth, portions of the geosphere are liquid
- 17. first level of ecological organization