Across
- 3. Coloration or pattern that helps an organism blend into its surroundings
- 5. No longer existing; died out completely
- 6. Group of organisms that can interbreed and produce fertile offspring
- 8. Remains or traces of ancient organisms preserved in rock
- 10. Group of individuals of the same species living in the same area
- 11. theory Well-substantiated explanation of the natural world based on facts
- 12. selection Process where organisms better suited to their environment survive and reproduce
Down
- 1. Trait that helps an organism survive and reproduce in its environment
- 2. Differences among individuals of the same species
- 4. Organism from which others have evolved or descended
- 5. All external conditions and factors affecting an organism
- 6. breeding Intentional breeding of organisms with desirable traits by humans
- 7. Change in species over time through descent with modification
- 9. Scientist who studies plants and animals in their natural settings