Gracie's Biology Bonus

1234567891011121314151617181920
Across
  1. 2. a group where organisms share enough DNA
  2. 4. hybrid offspring dies
  3. 6. levels of organization into which organisms are classified
  4. 12. species occur in different habitats
  5. 15. the branch of biology that groups and names organisms
  6. 17. process where organisms change over time
  7. 18. where an organism moves to a new area
  8. 19. Drift a random event removes genetic variation from a population
  9. 20. the process by which humans use breeding for specific traits
Down
  1. 1. each reproduces at a different time
  2. 3. changes in organisms that result in the creation of a new species
  3. 5. occurs gradually
  4. 7. reproductive isolation that keeps a sperm from fertilizing an egg
  5. 8. the preserved remains of impression of an organism
  6. 9. a diagram that links groups of organisms by showing how evolutionary lines branched off from common ancestors.
  7. 10. hybrid is sterile
  8. 11. gametes that meet do not fuse to form a zygote
  9. 13. grouping things into levels based upon similarities
  10. 14. an organism exits an area
  11. 16. when a new population is started by a small number of organisms