Across
- 3. new or different feature in the offspring of organisms that makes it better able to survive changes in environment
- 6. group of species that are related to one another (i.e. primates)
- 8. characteristic passed on from a parent to offspring
- 12. process through which populations of living organisms adapt and change with the environment
- 14. body parts
- 15. state of having many parts that are intricate or complicated
- 17. group of organisms believed to have evolved from a common ancestor
- 18. history of the earth as recorded in its rocks that make up its crust
- 19. history of the evolution of a species or group
- 20. similar anatomical structures in different species, share a common ancestor, but structures serve completely different functions
Down
- 1. cause a decrease in diversity of life forms on earth
- 2. species still in existence; surviving
- 4. having no living members; no longer in existence
- 5. development of embryo and fetus to the birth of a new individual
- 7. the way the body is formed
- 9. relationships between 2 species that have a common ancestor
- 10. group of organisms that can breed and produce offspring
- 11. theory that emphasizes change primarily through natural disasters
- 13. refers to the many different types of species on Earth
- 16. theory that emphasizes slow changes on Earth over long periods of time