biology 9.2

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Across
  1. 3. of or relating to the production of light by organisms
  2. 4. Situation in which the number of individuals of a given species exceeds the number that its environment can sustain.
  3. 6. the long-term heating of Earth's surface observed since the pre-industrial period
  4. 9. two species with identical niches cannot coexist indefinitely
  5. 13. the result of seawater percolating down through fissures in the ocean crust in the vicinity of spreading centers or subduction zones
  6. 15. when chemicals, particles, or other materials are released into the environment, harming the organisms there
  7. 16. an organism that helps define an entire ecosystem
  8. 17. an area classified according to the species that live in that location.
  9. 18. of or relating to the animals and plants that live in or near water.
  10. 19. describing that part of the deep oceans and lakes where photosynthesis is not possible
Down
  1. 1. when a new patch of land is created or exposed for the first time
  2. 2. happens when a climax community or intermediate community is impacted by a disturbance
  3. 5. a detailed description of the species within a community and their relationships with each other
  4. 7. the cutting, clearing, and removal of rainforest or related ecosystems into less bio-diverse ecosystems such as pasture, cropland, or plantations
  5. 8. native to a specific location and found naturally nowhere else.
  6. 10. a complex life form that is a symbiotic partnership of two separate organisms, a fungus and an alga
  7. 11. An ecological community in which populations of plants or animals remain stable and exist in balance with each other and their environment
  8. 12. all the different kinds of life you'll find in one area
  9. 14. a partially enclosed, coastal water body where freshwater from rivers and streams mixes with salt water from the ocean