Great Lakes Invasion

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Across
  1. 1. Fingernail-sized mollusk that primarily consumes phytoplankton
  2. 3. Small, aggressive fish that mature quickly and resemble native yellow perch
  3. 7. Wetland plant that displays a light purple flower stalk, and is often referred to at the "beautiful killer"
  4. 8. Process by which organisms create more of their own kind
  5. 9. Bottom-dwelling fish that have large heads, soft bodies, and slightly resemble large tadpoles that are taking over habitat of native fish species
  6. 11. Tiny crustacean with a long, barbed tail
  7. 12. Water that is not salty
  8. 14. All of the conditions, circumstances and influences surrounding and affecting the development and life of an organism
  9. 16. Exotic plants and animals have been invading these areas, mainly with human assistance
  10. 19. Something that does not live or grow naturally in a particular region or environment
  11. 21. Water carried in ships' hulls that is reponsible for transporting many exotic species to the Great Lakes
  12. 22. This type of vertebrate animal can easily move through rivers and waterways
  13. 24. Eurasion water plant that forms thick mats that choke out native plants
Down
  1. 2. Kingdom, Phylum, Class, Order, Family, Genus, ___
  2. 4. Self-sustaining community of organisms thriving under unique climatic conditions
  3. 5. Herring-like fish that is capable of rapidly increasing its population
  4. 6. Group of aquatic arthropods having an exoskeleton (eg. Lobsters, Shrimp, Crayfish and Crabs)
  5. 10. Indigenous plant or animal is a ____ species
  6. 11. Eel-like, jawless invasive fish species that is harming game fish population in the Great Lakes
  7. 13. Careful search or investigation to make discoveries
  8. 15. Group of invertebrate animals that have soft bodies and are usually enclosed in a shell (eg. snails and clams)
  9. 17. Species transported by humans to regions where they did not historically exist
  10. 18. Multicellular organisms; cells do not have cell walls; and, they cannot make their own nutrients from inorganic matter
  11. 20. Entrance of unwanted species into a new environment
  12. 23. Living organism not in the animal kingdom, which usually carry out photosynthesis