Why Fish Need Trees and Trees Need Fish

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Across
  1. 2. Related to water or organisms that live in water.
  2. 4. A relationship between two things in which changes in one are connected with changes in the other.
  3. 5. An area of land where water drains into the same stream, river, lake, or other body of water.
  4. 7. Plants that grow in a particular area.
  5. 10. An animal that does not have a backbone.
  6. 13. The number of salmon that successfully return to freshwater to reproduce.
  7. 14. The body of an animal after it has died.
  8. 16. Relating to land or plants located along the edge of a river or stream.
  9. 17. The wearing away and movement of soil, rocks, or other materials by water, wind, or ice.
  10. 18. To move from one place to another, often at a particular time of year.
  11. 19. An animal that is born in freshwater, lives part of its life in saltwater, and returns to freshwater to reproduce.
  12. 20. Related to microorganisms, such as bacteria and fungi.
Down
  1. 1. An element that plants and animals need to grow; it is also an important part of proteins.
  2. 3. To reproduce by releasing eggs and sperm, especially in fish.
  3. 6. Small pieces of soil, sand, rock, or other material that are carried and deposited by water.
  4. 8. The process in which water moves through something and carries dissolved substances with it.
  5. 9. Related to land or organisms that live on land.
  6. 11. A substance that living things need to grow, survive, and stay healthy.
  7. 12. Used to describe something that is very much like or almost exactly what it is called.
  8. 14. Things or organisms that have a similar role or position in another place or situation.
  9. 15. An element that living things need for growth and development.