Across
- 5. gas-filled sac that provides many bony fishes with buoyancy
- 6. organisms that manufacture organic matter from carbon dioxide
- 8. CO2+H2O+ sun energy --> orangic matter (glucose)+O2
- 9. tide pattern in which two successive high tides are of different heights
- 10. tide pattern with two high and low tides each day
- 12. reasources so rare that it restricts growth of population
- 13. tide pattern with one high and low tide each day
- 14. conversion of nitrogen gas into nitrogen compounds
- 18. difference in height between a high tide and the next low tide
- 20. tides with a large range that occur around a full moon or new moon
Down
- 1. tides with small range that occur when a moon is in quarter
- 2. mutualistic associations between fungi and microscopic algae
- 3. animals that eat organic matter that settles to the bottom
- 4. elimination of one species by another as a result of competition
- 7. molluscs whose shells consit of eight overlapping plates on thier upper,or dorsal surface
- 11. amount of heat energy required to raise the temperature of a substance
- 15. ribbon of small teeth, present in most molluscs
- 16. animals that actively filter food particles from water
- 17. structure used by many seaweeds to anchor themselves to the bottom
- 19. particles of dead organic matter