Chapter 6 Crossword Puzzle

3. Outer layer of cells
5. Most numerous zooplankton
7. Mineral in ATP (energy) and DNA
8. Top opening on the sponge through which water and waste exit
9. Makes up about 80% of weight in an organism's body
12. Mineral in thyroxin (growth hormone for vertebrates)
16. Mineral in nervous and muscular system
17. The process of asexual reproduction by development of an egg with the normal number of chromosomes in an adult without fertilization
18. Rigid structures that make up the framework of a sponge
21. Taking in of oxygen through the cell membrane
23. Name means "wheel-bearing"
26. Name means "pore-bearing"
27. Process of breaking down carbohydrates to provide energy
28. Process of carrying out sugar that needs to be stored or converted into other substances (two words)
30. Inner layer of cells

1. Animals composed of more than one cell
2. Only are zooplankton in the early stages of their life cycle
4. Animal-like organisms that float or drift near the surface
6. Means "hole-bearing"
10. High energy molecules
11. Spends their entire life cycle as zooplankton
13. Type of digestion in sponges
14. Mineral in bones and teeth
15. Cells Cells with flagella that line the inside of the body cavity (2 words)
19. Hemoglobin in red blood cells to carry oxygen and carbon dioxide (mineral)
20. Regulate all chemical reactions
22. Small pores along the sides of the sponge
24. Unicellular protist that feeds on phytoplankton
25. Middle jellylike layer
29. Unequal division of the cytoplasm