Across
- 1. Movement of individuals into or out of a population
- 3. Process where traits useful for survival are passed on
- 5. Differences among individuals in a population
- 8. Measure of reproductive success
- 11. Researched natural selection for two decades
- 13. Disappearance of species from Earth
- 14. Evolution that occurs by chance
- 15. All the genes present in a population
Down
- 2. Sequence of DNA that codes for a trait
- 3. Group of organisms capable of interbreeding
- 4. Accidental change in DNA
- 6. Organisms produce more of these than can survive
- 7. Speciation due to geographic isolation
- 9. Process by which new species are generated
- 10. Selection under human direction
- 12. Type of selection leading to adaptation