Across
- 4. The study of the geographic distribution of organisms.
- 6. Traits that aren't inherited.
- 8. What type of ancestors are living things descended from?
- 10. What was darwin?
- 13. Are structures that appear to have no function.
- 15. Idea that one species can turn into a new one.
- 16. Type of information that is passed on to offsrping.
- 18. Change in a species over time
- 19. Different species have _____ structures.
- 20. Is a group of organisms that can produce fertile offspring.
Down
- 1. Individuals survive longer and reproduce more than others.
- 2. The level scientists can compare species on.
- 3. Similar physical features in organisms that share a common ancestor.
- 5. A change in species caused by breeding it for certain traits.
- 7. Acts on phenotype or physical traits.
- 9. When there are more individuals than the environment can support.
- 11. Structures that perform a similar function but are not similar in structure.
- 12. The difference in a physical trait.
- 14. Preserved remains of organisms.
- 17. The study of embryos.