Across
- 3. Structures that serve no function
- 5. Fertilized egg
- 8. Both ends of the curve have a higher fitness than the middle
- 10. History of life documented by fossils
Down
- 1. What is used to determine the age of fossils
- 2. middle of the curve has higher fitness
- 4. Structures that are similar in structure but different in function
- 6. Any change in a sequence of DNA
- 7. When chance can cause alleles to become less or more common
- 9. Bodily structures that are similar in function but not in structure