Across
- 3. The study of human population characteristics
- 5. An animal that kills other animals and eats them
- 6. When a species is wiped out & no long longer exists
- 11. The agricultural & extreme weather phenomenon in the Great Plains in the 1930's
- 13. Environmental factors that never lived, limiting population
- 14. Biotic or abiotic conditions that control the growth of a population
- 15. Data revealing percentage of different ages & genders of a population
- 17. Individuals moving into an area
- 18. The revolution of human population growth that occurred in the 1800's
Down
- 1. An animal that only eats plants
- 2. An animal that is killed and eaten
- 4. The accelerating increase in population
- 7. The country where the potato famine occurred in the 1840's
- 8. Number of individuals per unit area
- 9. When a population's growth curve slows then stops, after exponential growth
- 10. The number of individuals of a species that an environment can support
- 12. Individuals moving out of an area
- 16. Environmental factors that once lived, limiting population