Across
- 3. have the same function but not the same structure
- 5. changes in traits over time
- 6. one of the genders selects the trait they wish to reproduce with
- 9. excessive nutrients end up with algae growing
- 10. structures that were used by ancestors are no longer being used
- 13. a measurement of how many kind of species in the area
- 14. changed behavior or phenotypic traits to survive
- 15. raid growth of algae
Down
- 1. body parts that have a similar structure
- 2. remains of organisms that show that hey have common ancestor
- 4. the rate of certain traits doesn't change
- 7. having the same ancestor species
- 8. remains of organisms that become part of rock, bone, plants...
- 11. the ability to survive and reproduce
- 12. chance over time rather than sudden change