Across
- 3. The author of the Origin of Species
- 6. Selective reproductive changes to improve an organism
- 7. Change in the gene pool caused by chance
- 8. Organ that is different to ancestors
- 9. Animal or plant that has become fitted for the environment
- 10. Made the Germ Theory of Disease helping stop the spread of disease
- 11. The study of developing embryos
- 12. Scientist that study fossils
- 16. Organisms arise from nonliving matter
- 18. Synthesis of substances by living organism
- 19. Scientist that came up with the theory that the earth is 300 million years old
Down
- 1. Physical characteristics that is not inherited
- 2. Repeated evolution of similar traits in multiple lineages
- 4. Species that descent into two or more species
- 5. Changing in a species by natural selection
- 13. How cells have become more complex by evolution
- 14. Remains of an animal in the past era
- 15. Body parts from 2 species that are similar because of common ancestor
- 17. Studied the origin of life by chemical matter
- 20. Evolution resulting in a new species