mind boggler

9. change in aleele frequency as a result of the migration of a small group of a population
10. charecteristics that increases an organisms ability to survive and reproduce in its environment
11. dramatic reduction in size of a population by change in allele frequency
12. process by when individuals select mates on basis of heritable traits
13. structure similar in function but not structure
14. controlled by one gene that has two alleles
16. structure that is reduced in size that has little or no function
17. conatins alleles of all genes in a population
18. allele frquencies remain constant unless on or more factors cause those frequencies to change
20. trait controlled by two or more genes

1. number of times allele occurs in gene pool
2. higher fitness than individuals in middle or at end of curve
3. "survival of the fittest"
4. structure that are similar in species of common ancestry
5. situation in allele frequency where population remains the same
6. how well an organism can survive and produce in its environment \
7. change in frequency caused by change of occurence which makes an allele more or less common
8. individuals near center have higher fitness then other at either end of curver
15. study of past and present distribution of organisma
19. individuals at lower or upper of curve have higher fitness then others near middle of curve