natural selection

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Across
  1. 2. he disguising especially of military equipment or installations with pain
  2. 8. based on the idea that all species? are related and gradually change over time.
  3. 10. process whereby organisms better adapted to their environment tend to survive
  4. 11. is the man who created the darwin theory
  5. 12. to change or develop slowly often into a better, more complex, or more advanced state
Down
  1. 1. is a group of organisms that can reproduce with one another in nature
  2. 3. the act or process of changing to better suit a situation.
  3. 4. an alteration in the nucleotide sequence of the genome of an organism
  4. 5. carefully thought-out explanation for observations of the natural world that has been constructed using the scientific method
  5. 6. o receive from a parent or ancestor by genetic transmission inherit a defective enzyme.
  6. 7. the man who created the thoery of evolution
  7. 9. to the differences or deviations from the recognized norm or standard