Biological Evolution

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Across
  1. 4. a change in the nucleotide sequence of an organism’s genome
  2. 5. to change over time
  3. 6. a part of an organism; also refers to the way parts are put together
  4. 7. the permanent loss of a population or species
  5. 9. the process by which the characteristics of a species change over many generations in response to the environment
Down
  1. 1. relating to genes or heredity
  2. 2. all of the animals who live in a certain region
  3. 3. a situation that is observed to exist or happen
  4. 8. a characteristic or property of an organism