Aquatic Ecosystems MATCHING
In the space provided, write the letter of the term or phrase that best matches
the description.
1. lake that has a large amount of plant growth due
to nutrients
2. organisms that float near the surface of water
3. marine ecosystem dominated by trees with
stilt-like roots
4. factor that determines where aquatic
organisms live
a. salt marsh
b. corals
c. benthic zone
d. dams
e. plankton
f. oxygen
g. flood control
h. mangrove
swamps
i. eutrophic lake
j. overfishing
5. threat to ocean organisms
6. marine ecosystem dominated by marsh grasses
7. bottom of a pond or lake
8. use stinging tentacles to capture prey
9. environmental function of wetlands
10. threat to river ecosystems

Which table best shows the impacts resulting from human activity? impact of human activities human activity impact use of manure and other organic fertilizers reduction in population of birds use of pesticides in farms increase in bird population in nearby wetlands impact of human activities human activity impact use of manure and other organic fertilizers reduction in animal population use of pesticides in farms increase in population of native insects and bugs impact of human activities human activity impact use of plastic decrease in marine animal population removal of beach grass increase in pollution of ocean impact of human activities human activity impact use of plastic increase in fish population removal of beach grass decrease in sand erosion