Unit 6: Marine Ecology

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Across
  1. 5. Plankton that make energy from the sun. (Plants)
  2. 6. Only _____ percent of energy is passed up each trophic level.
  3. 10. Species interaction where one organism benefits and the other is harmed
  4. 12. Make their own energy. Self-nourishing.
  5. 15. They only eat other animals for energy.
  6. 17. Where an organism lives or spends most of its time within a community
  7. 18. The gradual process by which ecosystems change and develop over time
  8. 20. Environmental ______________ limits population sizes and leads to S-shaped growth curves
  9. 22. How producers change light energy into chemical energy
  10. 23. All living and non-living things interacting in a given area
  11. 25. The overall _______ of consumers at the top of a trophic pyramid must me smaller than that of producers at the bottom.
  12. 26. A measure of disorder in the universe which can sometimes be overcome by using energy
  13. 27. Plankton that eat phytoplankton. (animals)
  14. 28. Population distribution where individuals are equally spaced
  15. 29. A group of organisms of the same species occupying a specific area.
  16. 31. Food _______ show individual feeding relationships among organisms.
  17. 32. Population distribution where conditions for growth are optimal in small areas within the community
  18. 33. An organisms "role" or "job" in a community
  19. 34. A measure of the amount of living material in a given area. There is far more on land than in the ocean.
Down
  1. 1. They eat dead things and/or feces for energy.
  2. 2. Population distribution where one organism's position in no way influences the position of another
  3. 3. This is the increasing concentration of toxins as they move up the trophic pyramid. It leads to mercury in fish.
  4. 4. Used by bacteria to produce energy on the ocean floor near hydrothermal vents.
  5. 7. They only eat plants for energy.
  6. 8. Species interaction where both organisms benefit
  7. 9. Species interaction where one organism benefits and the other is unaffected
  8. 11. The main source of energy on planet Earth
  9. 13. Examples of these are food, space, and light. Organisms compete for them.
  10. 14. Net Primary Production is higher as you move closer to _______
  11. 15. Multiple species or populations interacting in a given area. Only living things.
  12. 16. They eat both plants and animals for energy.
  13. 19. Carrying __________ is the populations size of each species that can be supported indefinitely
  14. 21. Can not produce their own energy. They must eat other things.
  15. 24. Type of pyramid used to show the amount of biomass at each level of a given ecosystem.
  16. 30. Generally plants that capture energy from the sun. Primary _________