Unit 1 Test CW

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Across
  1. 4. middle layer of cells
  2. 7. when one side of a group of hollow cells indents
  3. 9. when a cell has a nucleus and other organelles
  4. 10. on inside of sponge, have flagella
  5. 11. second to last specific category
  6. 12. having no body cavity or organs
  7. 14. outer layer of cells
Down
  1. 1. fertilized egg
  2. 2. the things that sting prey (on tentacles)
  3. 3. 32 or more cells with a filled in center
  4. 5. when cluster of cells hollows out
  5. 6. the term for when an organism produces eggs and sperm
  6. 8. aid in reproduction and in carrying nutrients
  7. 9. inner layer of cells
  8. 13. small openings that allow water into the sponge