Across
- 5. Type of natural selection where one phenotype is selected over the other
- 10. He wrote about the role of competition and adaptations in the success of organisms
- 11. The factor that limits the number of individuals that can live in an area
- 12. Used selective breeding to pass on desired traits
- 13. Structures that appear to have no use or purpose; typically smaller in size
- 15. Type of natural selection where the intermediate phenotype is selected for
- 16. Humans identify desirable traits and selectively breed those organisms
- 19. Organisms which are not related develop similar adaptations
- 20. A change in the frequency of alleles in a population
- 21. Geologist who studied the age of the earth and changes that occured over geological time
- 22. He developed a system of organization for all living things based on structural and functional similarities
- 23. Structures that are similar in use but are structurally different
Down
- 1. Organisms rapidly diversify from a common ancestor in a variety of new ways; example: finches
- 2. Studied in the Galapagos; he theorized Natural Selection and Descent with Modification
- 3. Type of natural selection where the extreme ends of the phenotypes are selected for
- 4. Structures that have similar structure but different functions
- 6. ________________ evolve, individuals do not
- 7. He thought the human population has the ability to grow unchecked but do not grow unchecked due to limits like war, famine and disease
- 8. Survival and reproduction of organisms which are genetically best adapted to the environment
- 9. The number of individuals an area can support
- 14. Organisms from common ancestry develop different adaptations
- 17. He recognized that organisms change over time as a result of environmental influence; believed if an organism constantly uses a body part during its life, it can adapt and pass this adaptation onto its offspring
- 18. He recognized that organisms have variation and that the variation is distributed geographically