Environmental Changes

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Across
  1. 2. - External conditions
  2. 4. - Happens over time and affects generations
  3. 6. - How long an organism is expected to live
  4. 7. - An organism becomes better suited to its environment
  5. 8. - the disappearance of a species
Down
  1. 1. - Range of life in a habitat
  2. 3. - Happens quickly but doesn't last
  3. 5. - Survive under circumstances