Science

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Across
  1. 2. part of the earth in which organisms live is called
  2. 6. succession/ a gradual replacement of one type of biological community by another through a series of changes
  3. 9. a symbiotic interaction that benefits one species but harms the other
  4. 11. succession/ the re-growth of a community in area that has soil and was recently inhabited by living organisms.
  5. 12. is the scientific study of relationships between organisms and their environment
Down
  1. 1. a relationship between two living things of different species in which one benefits while the other is neither helped nor harmed
  2. 3. a type of symbiosis where one species is harmed and the other benefits
  3. 4. Scientists who study ecology
  4. 5. a relationship between two living things of different species in which both benefit
  5. 7. succession/ the development of plant and animal communities in an area were living things have never excited before
  6. 8. community/ is reached through plant succession
  7. 10. a large area where the conditions are very similar