Chapter 6 Crossword Puzzle

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Across
  1. 3. Outer layer of cells
  2. 5. Most numerous zooplankton
  3. 7. Mineral in ATP (energy) and DNA
  4. 8. Top opening on the sponge through which water and waste exit
  5. 9. Makes up about 80% of weight in an organism's body
  6. 12. Mineral in thyroxin (growth hormone for vertebrates)
  7. 16. Mineral in nervous and muscular system
  8. 17. The process of asexual reproduction by development of an egg with the normal number of chromosomes in an adult without fertilization
  9. 18. Rigid structures that make up the framework of a sponge
  10. 21. Taking in of oxygen through the cell membrane
  11. 23. Name means "wheel-bearing"
  12. 26. Name means "pore-bearing"
  13. 27. Process of breaking down carbohydrates to provide energy
  14. 28. Process of carrying out sugar that needs to be stored or converted into other substances (two words)
  15. 30. Inner layer of cells
Down
  1. 1. Animals composed of more than one cell
  2. 2. Only are zooplankton in the early stages of their life cycle
  3. 4. Animal-like organisms that float or drift near the surface
  4. 6. Means "hole-bearing"
  5. 10. High energy molecules
  6. 11. Spends their entire life cycle as zooplankton
  7. 13. Type of digestion in sponges
  8. 14. Mineral in bones and teeth
  9. 15. Cells Cells with flagella that line the inside of the body cavity (2 words)
  10. 19. Hemoglobin in red blood cells to carry oxygen and carbon dioxide (mineral)
  11. 20. Regulate all chemical reactions
  12. 22. Small pores along the sides of the sponge
  13. 24. Unicellular protist that feeds on phytoplankton
  14. 25. Middle jellylike layer
  15. 29. Unequal division of the cytoplasm