Across
- 3. evidence of life from the past
- 4. structure part of an organism (bones)
- 6. having died out completely on Earth
- 8. when something stays mostly the same over time
- 9. a group of individuals born around same time
- 11. a related organism from previous generation
- 13. increases chances organism will survive
- 14. scientist who studies fossils
- 16. graph that uses bars to show distribution
Down
- 1. adaptation that occurs over a long time
- 2. to classify based on scientific examination
- 5. a random change to a gene
- 7. an organism's arm leg or wing
- 10. a specific characteristic of an individual organism
- 12. group of same kind of organisms
- 15. to receive genes from a parent