Rivers
Freshwater
Organisms
Oceans
Human Impact
100
These flow down a mountain towards flatter ground and become
Wider, warmer, slower
100
What do wetlands do for the environment?
Help with flood control and filter pollutants out of water
100
All producers need what two things to make their own food through photosynthesis?
Sunlight and Nutrients
100
The majority of all ocean life exists in what area?
Shallow areas off of the coast
100
What is the term used to describe the act of harvesting too many fish from an ecosystem?
Overfishing
200
This part of a drainage is characterized by cold, oxygen rich water.
Headwaters
200
What is the deep dark zone of a lake or pond called?
Benthic Zone
200
What organisms float near the surface?
Plankton
200
The richest biodiversity in the ocean can be found where? (rainforest of the sea)
Coral Reefs
200
What can occur when excess nutrients get into an aquatic ecosytem?
Algae Bloom
300
What ecosystem helps control flood water from rivers?
Wetlands
300
The shallow nutrient waters of lakes and ponds with great diversity of life are known as what zone?
The littoral zone.
300
What uses stinging tentacles to capture prey and are also responsible for building up limestone ridges?
Coral
300
What area of the ocean is not considered productive?
Open Ocean
300
Most pollutants enter aquatic ecosystem by what means?
As Runoff
400
These trap water and sediment which can contain materials that can grow to toxic levels and can prevent certain migrations.
Dams
400
This wetland is dominated by woody plants.
Swamp
400
Organisms in an Estuary have to be adapted for changes in what two things?
water levels and salinity
400
Where do most ocean pollutants come from?
Runoff from land
400
What process prevents any oxygen loving organisms from inhabiting an aquatic ecosystem due to the abundance of algae or other plants?
Eutrophication
500
Rivers can carry what important ingredient from the mainland to estuaries and oceans?
Nutrients
500
These lakes have large numbers of algae and plants due to nutrients, but lack oxygen-loving-organisms....
What are Eutrophic Lakes
500
How do nutrients enter the deep parts of the ocean?
Dead organisms sinking down from above
500
What happens to coral if the algae die?
They turn white....called coral bleaching
500
What ecosystems drain slowing and can accumulate high amounts of pollutants that can become toxic and have a negative impact?
Estuaries
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