Science class

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Across
  1. 3. form of natural selection that individuals at one end of a distribution curve have a higher end of fitness that the others
  2. 4. structure thats inherited from ancestors but has lost most or al of its original function
  3. 8. how well a organism can survive and reproduce
  4. 9. change over time
  5. 10. for of natural selection that individuals near the middle of a distribution
  6. 12. natural selection in which the individuals at the lower and upper ends of the curves have higher fitness levels
  7. 16. preserved remains or traces of organisms
  8. 18. number of ties a allele occurs in a gene pool
  9. 20. body parts that share functions
Down
  1. 1. increases an organisms ability to survive
  2. 2. survival of the fittest
  3. 5. trait controlled by the gene that has 2+ alleles
  4. 6. structures that are similar in different species
  5. 7. trait controlled by 2+ genes
  6. 11. study of distribution of organisms
  7. 13. a group of similar organisms that can reproduce fertile offspring
  8. 14. formation of a new species
  9. 15. sum total of all of the different forms of genetic information
  10. 17. change in allele frequencies
  11. 19. all the genes that are in a present population