Natural Selection Vocabulary

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Across
  1. 3. ______ selection: Humans decide which phenotypes can reproduce.
  2. 5. A random change in the genetic code (a copying mistake).
  3. 8. A color or pattern that makes something hard to see or kill.
  4. 10. How populations evolve to become new species.
  5. 12. A group of organisms that can mate with each other.
  6. 13. All of the traits and genes in a population.
  7. 14. A trait that works and becomes more common.
  8. 15. An observable or measurable characteristic.
  9. 16. Forcing two organisms to reproduce.
Down
  1. 1. Movement of genes and traits from one place to another.
  2. 2. Two species change each other's evolution.
  3. 4. The covering of leaves on trees or shrubs.
  4. 6. ______: Something in the environment that increase or decrease the passing on of a trait.
  5. 7. Ability to survive and pass traits to the next generation
  6. 9. Observable traits, caused by differences in genes.
  7. 10. Natural ___: Traits that support reproduction become more common in the population.
  8. 11. The covering of feathers on a bird.