Across
- 2. choice of reproduction
- 4. chemical process related to living things
- 5. all the people that live on earth
- 6. the slow function of something
- 9. a tool paleontoligist use to identify bone structures
- 11. migration
- 13. random sudden change to equal change
- 14. common ancestor leads to a common trait
- 15. a study of structure of living things
- 16. island animals that represent the same animal on land
- 18. study of baby in mom belly
- 21. idea of species changing over time
- 22. most fit animal survives
- 23. the formation of new and distinct species in the course of evolution.
- 25. is the independent evolution of similar features in species of different periods
- 26. they share same environment
- 27. the study of pre-historic life
Down
- 1. extinction of animals dying in big population or all at once
- 3. the influence of closely associated species on each other in their evolution.
- 7. the formation of new and distinct species in the course of evolution.
- 8. the set of gene population
- 10. a sudden change of gene
- 12. a structure that had lost major function
- 15. fits organism to their environment
- 17. same common ancestor
- 19. slow change of extinction
- 20. animals that can reproduce and mate together
- 24. things changing over time