Biology vocab

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Across
  1. 1. zone photosynthesis can't occur
  2. 3. an interaction in which one animal captures and feeds on another animal
  3. 5. interaction which one animal feeds on producers
  4. 8. succession more or less predictable changes that occur in a community
  5. 12. tall trees form a dense, leafy covering
  6. 14. describes not only what an organism does but how it interacts with biotic and abiotic in the enviro nt
  7. 15. environmental conditions can vary over small distances
  8. 17. an ecosystem in which water either covers soil or is present at or near the surface
  9. 18. a special kind of wetland, formed where a river meets the sea
  10. 19. dense forests of coniferous evergreens along the northern edge of the temperature zone
  11. 22. succession disturbance affects the community without completely destroying it
  12. 23. place where an organism lives
  13. 24. a plant that sheds its leaves during a particular season
  14. 25. can refer to any necessity of life. Water, nutrients, light, and food
  15. 26. any relationship which 2 species live closely together
  16. 27. trees, or conifers, produce seed- bearing canes, and the most have leaves shaped like needles, which are coated in a waxy substance that helps reduce water loss
  17. 28. habitat is the benthic zone
  18. 29. relationship between species in which both benefit
Down
  1. 2. a layer of permanently frozen subsoil
  2. 3. zone sunlight region near the surface in which photosynthesis occurs
  3. 4. day-to-day conditions of Earth's atmosphere
  4. 6. species changes in the population
  5. 7. includes both phytoplankton and cooplankton
  6. 9. material formed from decaying leaves and other organic matter
  7. 10. average conditions over long periods
  8. 11. species first species to colonize barren areas
  9. 12. one organism benefits and the other isn't helped or harmed
  10. 13. succession succession that begins in an area with no remnants of an older community
  11. 16. organism lives inside or on another organism and harms it
  12. 20. effect allowing visible light to enter but trapping heat of environmental circumstances
  13. 21. shorter trees and vines form a layer
  14. 27. exclusion principle states that no 2 species can occupy exactly the same niche in exactly the same habitat at exactly same time