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Across
  1. 1. when there is higher density, this factor spreads faster
  2. 4. individuals leave the ecosystem
  3. 6. things like hurricanes, tornados, earthquakes...
  4. 8. individals figh for resorces
  5. 9. Factors that affect populations no matter their size
Down
  1. 1. when preys increase, redators also increase
  2. 2. individuals arrive to the ecosystem
  3. 3. if this factor has changes from usual the population is affected
  4. 5. Factors tha affect populations according to their density
  5. 7. the activities of this species affects ecosystems