Natural Selection

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Across
  1. 3. rank
  2. 6. cryptic coloration, is a defense or tactic that organisms use to disguise their appearance
  3. 7. to evolution
  4. 9. `change in all forms of life over generations,
Down
  1. 1. variation` is the difference in DNA among individuals or the differences
  2. 2. a mutation is an alteration in the nucleotide sequence
  3. 4. evolutionary process whereby an organism becomes better able to live in its habitat or habitats
  4. 5. selection differential survival and reproduction of individuals due to differences in phenotype.
  5. 8. biology, a species is the basic unit of classification