mind boggler

5. conatins alleles of all genes in a population
8. structure that are similar in species of common ancestry
10. structure that is reduced in size that has little or no function
11. study of past and present distribution of organisma
13. allele frquencies remain constant unless on or more factors cause those frequencies to change
14. change in aleele frequency as a result of the migration of a small group of a population
15. "survival of the fittest"
18. situation in allele frequency where population remains the same
19. trait controlled by two or more genes
20. change in frequency caused by change of occurence which makes an allele more or less common

1. charecteristics that increases an organisms ability to survive and reproduce in its environment
2. structure similar in function but not structure
3. higher fitness than individuals in middle or at end of curve
4. number of times allele occurs in gene pool
6. individuals near center have higher fitness then other at either end of curver
7. dramatic reduction in size of a population by change in allele frequency
9. process by when individuals select mates on basis of heritable traits
12. individuals at lower or upper of curve have higher fitness then others near middle of curve
16. controlled by one gene that has two alleles
17. how well an organism can survive and produce in its environment \