Across
- 2. Non-living factors such at climate, soil composition and landforms
- 8. Too much or too little of an environmental factor that encourages adaptations
- 12. all member of a species that live in an area
- 14. Species have analogous structures
- 16. Occurs when a gene becomes more frequent because it gives an advantage
- 18. individual life form
- 19. describes the physical space and environment that an organism can survive
- 20. Organisms hunting and killing other species for food
- 22. Physical differences in coloration, body covering, shape, etc.
- 23. Organisms attempting to access the same resources or mates
- 24. Is the evolution of a species due to traits favored by humans
Down
- 1. Results from sudden decrease in population size which reduces the gene pool
- 3. made of all the populations living and interacting in on area
- 4. Internal body process, such as tanning or the production of poison
- 5. Females choose males based on structural or behavioral differences
- 6. all parts of Earth occupied by life
- 7. Change in genes frequency due to random chance
- 9. Factors that include other species like predators and competitors
- 10. Few individuals from a large population migrate to an isolated area
- 11. includes the biological community and the surrounding physical environment
- 13. Actions takes, such as migrations or marking territory
- 15. Species have homologous structures
- 17. Characteristics that make an organism better suited to its habitat
- 21. Change in the frequency of a gene in a population over time
