Across
- 1. gets credit for explaining how evolution happened
- 3. a measure of how all the adaptations of an organism help it survive
- 7. the normal way most things grow and age, such as science teachers losing their hair
- 9. _______ breeding of dogs gave us many different breeds
- 10. _________ selection says the fittest have a better chance to live
- 11. whales have _______ bones in their flippers
- 12. same parts in the same place with the same or different jobs
- 15. this kind of evolution everyone agrees happens
- 18. __________ have vestigial structures that disappear before birth
- 20. _________ is a mistake made copying DNA
- 21. your fitness can change if you move to a new __________
- 22. useless parts
- 23. differences that are inherited
Down
- 2. a variation that helps one survive in ones environment
- 3. the shorter the generation time is the ______ evolution is
- 4. the theory that species change over time
- 5. the role an organism plays in its environment
- 6. different parts or built very differently but the same job
- 8. a diagram showing how different organisms are related
- 13. the opposite is punctuated equilibrium
- 14. __________ is when organisms struggle to get the same stuff
- 15. this kind of evolution results in a new species
- 16. older fossils are found _______ in the rocks
- 17. ______ the kinds of rocks where fossils are found
- 19. ____ reproduction results in faster evolution than asexual reproduction
- 20. a caterpillar turning into a butterfly is an example.