Attack of the Zebra Mussels

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Across
  1. 5. Zebra mussels are protected by two hinged shells.
  2. 6. Area of United States zebra mussels were introduced to.
  3. 7. Two seas zebra mussels are native to.
  4. 10. Zebra mussels attach to native mussels to prevent them from____.
  5. 11. The number of eggs a female can release in one year
  6. 13. Number of states where zebra mussels have been documented.
Down
  1. 1. Organisms that can starve due to zebra mussels overeating.
  2. 2. Zebra mussels can disrupt the food chain by overeating ____.
  3. 3. Mussels attached to boats traveling across the ___ ___.
  4. 4. The number of U.S. lakes where zebra mussels have been found.
  5. 8. Zebra mussels are an ____ species because they do not belong in U.S. waters.
  6. 9. Size of adult zebra mussel
  7. 12. Clusters can damage boat ___, clogging water pipes.