Natural Selection

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Across
  1. 4. change over time or descent with modification
  2. 5. a proposed explanation for an observation which has not been tested
  3. 6. group of species living in the same area
  4. 8. a particular characteristic of an individual plant or animal
  5. 10. a trait that exists in several different morphs
Down
  1. 1. differences in a species that is passed on
  2. 2. spontaneously occur from a mistake in the DNA
  3. 3. Produce more young than will survive
  4. 7. change to better suit the environment
  5. 9. individuals that can interbreed with each other