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