Evolution

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Across
  1. 4. Selects against the average individuals, occurs in fluctuating environments
  2. 5. Eliminates extreme traits
  3. 7. Heritable genetic traits
  4. 10. A trait that neither helps or decreases chances of survival
  5. 12. Physical characteristic
  6. 13. The process in which organisms have developed from earlier forms
Down
  1. 1. Acts on an individual's ability to obtain and reproduce with an individual
  2. 2. A trait that can help an organism survive
  3. 3. Favours the reproductive fitness of relatives
  4. 6. The process whereby organisms better adapted to their environment are more likely to survive and produce more offspring
  5. 8. The person who formulated the theory of evolution
  6. 9. When natural selection favours an extreme phenotype
  7. 11. A trait that decreases the organisms chance of survival