Evolution

2. the alleles of a population change due to immigration in or out of a population
4. extreme phenotypes are not selected for in a population
7. most of a species dies off in a relatively short period
8. theoretical scenario providing no evolution
11. voyaged on the HMS Beagle and proposed decent with modification
12. all of the alleles in a population
14. most individuals in a population die and the ones who survive determine future allele f frequencies
16. due to a random chance that changes allele frequencies
17. the individuals best adapted to the environment will survive
18. first genetic material
19. ability for an organism to reproduce and the likelihood of the offspring’s survival

1. the scenario suck as with sickle-cell anemia and malaria when the person with an allele for each the dominant and recessive has the highest fitness
3. the study of evolution through the form of past or present taxonomic groups
4. organisms are more likely to reproduce because they have an advantage in
5. organisms mutate due to radiation
6. two poles of a phenotype are selected for in a population
9. a phenotype is directly selected for towards one pole
10. the study of changes in allele frequencies in populations
13. characteristics organisms have to help them be better suited for their environment
15. isolated individuals have their genetic makeup become dominant in a new population