Water Ecosystems

3. warm shallow waters with many organisms
5. places in the deep sea where bacteria make food from chemicals
9. a body of freshwater that might flow slow or fast
12. the plants, soils, and microorganisms of wetlands often ______ the waters that flow through them
13. this grows inside of corals and helps to build its skeleton
14. a deep body of water with organisms adapted to high pressure, cold water, and darkness
15. largest river ecosystem in North America
16. some algae help the corals by carrying on____________________
20. animals that live on land and in water need specialized _______________ that allow them to do well in both environments

1. coral reefs grow well in waters that do not have many ____________
2. place where freshwater meets the ocean
4. plants cannot grown in the deep sea because _________ cannot reach its cold depths
6. wetlands covered with large amounts of sawgrass
7. coral reefts protect shore lines from ocean _________
8. islands where the first deep-sea vent was discovered in 1977
10. these do not grow in the deep sea because there is not enough sunlight
11. a grassy wetland at the edge of an estuary
17. these organisms do not have a mouth or stomach. Bacteria live inside of these organisms and make food
18. wetlands covered with various types of trees and bushes
19. an area that is partly covered by water or flooded partly by water each year