Unit 6

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Across
  1. 3. The study of living things in their natural environment
  2. 6. The region of land that is covered and uncovered by tides of water
  3. 7. The alternating rise and fall of the sea
  4. 8. A community of different species that interact with each other and their environment
  5. 9. Anything that can cause harm to an ecosystem
  6. 10. All members of a species within a certain area
  7. 13. A visual network that shows a food chain in an ecosystem
  8. 14. The point when seawater rises to its highest level during a tide cycle
  9. 15. An organisms that eats other organisms
  10. 16. An organism that breaks down waste and feeds on nutrients
Down
  1. 1. The point when seawater retreats to its lowest level during a tide
  2. 2. Organisms that eat other organisms
  3. 4. A trait that helps organisms survive in their in environment
  4. 5. A marine animal that strains nutrients and small organism for energy
  5. 11. Organisms that use sunlight energy to make food
  6. 12. Any factor that reduces an organisms ability to survive