Across
- 5. A biological community of interacting organisms and their physical environment.
- 6. group of individuals of the same species that live in the same area
- 10. The study of how living things interact with each other and their environment
- 12. the struggle between organisms to survive in a habitat with limited resources
- 14. a sudden decline in population
- 15. Population growth that is controlled by limited resources
- 16. Any living thing
- 17. The number of different species in an area
- 18. A natural process resulting in the evolution of organisms best adapted to the environment.
- 20. A relationship in which two different organisms live in close association with each other
- 22. the single factor in shortest supply relative to demand
- 24. Breeding organisms with specific traits in order to produce offspring with identical traits.
- 25. Population growth that is unhindered because of the abundance of resources for an ever-increasing population.
- 26. zone where small numbers can survive these difficult conditions
Down
- 1. the combination of all factors that act to limit the growth of a population
- 2. All the different populations that live together in an area
- 3. range where organisms survive, grow, and reproduce
- 4. the difference between what the customer really wants and what he or she will accept before going elsewhere
- 7. One organism benefits and the other is harmed
- 8. when a population becomes larger than the environment's carrying capacity
- 9. Changes in physical structure, function, or behavior that allow an organism or species to survive and reproduce in a given environment.
- 10. Change over time
- 11. symbiotic relationship in which both species benefit from the relationship
- 13. one organism benefits and the other is unaffected
- 19. the natural home or environment of an animal, plant, or other organism.
- 21. the evolution of new species
- 23. part of Earth in which life exists including land, water, and air or atmosphere