Time Of Change

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Across
  1. 6. producing too much offspring that the environment can not support
  2. 7. to adjust naturally occurring trait variations in population
  3. 9. selection, practice by which humans select plants or animals based on desired traits
  4. 10. all members of species die off
  5. 11. selection, process by which organisms inherit advantageous traits
Down
  1. 1. NFL Pittsburgh football team
  2. 2. a change in genetic material
  3. 3. record, provides evidence about the order in which species have existed through time
  4. 4. imprints of once living organism
  5. 5. to change over time
  6. 8. differences in traits