SCIENCE

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Across
  1. 3. the scientific study of the interactions between living organisms
  2. 6. a system formed by interacting organisms
  3. 8. the state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, rain,
  4. 10. an area classified according to the species that live in that location
  5. 11. of or relating to the sea
  6. 12. a person, company, or country that makes, grows, or supplies goods or commodities for sale.
Down
  1. 1. an organism, often a bacterium, fungus, or invertebrate, that breaks down dead plant or animal matter, returning essential nutrients to the ecosystem
  2. 2. a group of organisms that can reproduce with each other and share similar characteristics
  3. 4. the body's ability to maintain a stable internal environment
  4. 5. water with low salt concentration, typically less than 1%
  5. 7. a graphical representation of the interconnected food chains within an ecosystem,
  6. 9. an animal that feeds on plants.