Across
- 4. Development of new species
- 8. Small subset of a population colonizes a new area
- 10. Relative abundance of a trait in a population
- 11. Describes all the alleles present in all the individuals in a population
- 14. When the average phenotype achieves higher fitness
- 15. Group of organisms of the same species that live in the same place at the same time and interbreed
- 16. Adaptation that allows spreading into other environments
- 17. The idea that those individuals best suited to their environments acheive higher fitness
- 18. Physical separation of 2 populations of the same species
Down
- 1. Evolution as a result of humans deciding which traits to select for or against
- 2. State of genetic equilibrium
- 3. Structure of different species that are similar in function but not necessarily in structure
- 5. When one extreme phenotype acheives higher fitness
- 6. Large population cut down to a much smaller one
- 7. Movement of genes/alleles between populations
- 8. Ability of an organism to survive and reproduce succesful offspring
- 9. Communication barriers and mating selection differences
- 12. Factors that increase fitness
- 13. Random changes in allele frequency due to random events