Freshwater Ecosystems
Marine Ecosystems
Feeling Lucky?
Vocabulary
Randos
100
This type of plankton are consumers
zooplankton
100
Name a recreational activity coastal wetlands provide humans
Boating,
Fishing,
Hunting,
ETC
100
In the _________ zone, aquatic life is most diverse and abundant.
littoral
100
aquatic ecosystem dominated by grasses
marsh
100
This freshwater fish has an adaptation to hold on tightly to rocks using its mouth. If it didn't have this adaptation, it would be swept away by the fast-moving water. In what ecosystem do you think it is adapted to?
Rivers
200
Give two factors that determine where an organism lives in an aquatic ecosystem.
- Temperature
- Nutrients
- Oxygen
- Sunlight
200
Why doesn’t photosynthesis occur in deep ocean water?
There is no sunlight
200
Tiny animals, called polyps, secrete limestone creating __________ _________
Coral Reefs
200
bottom of a pond or lake
benthic zone
200
As you get deeper in a lake, oxygen ___________.
decreases
300
Name two reasons humans drain, fill, and clear wetlands
Farms
Residential Development
Commercial Development
300
Trees that grow in saltwater, creating an important coastal ecosystem
mangroves
300
Bacteria can kill organisms in eutrophic lakes by _________.
reducing oxygen dissolved in water
300
mussels, clams & worms
benthos
300
There is a total of 255,300 square kilometers of coral reefs in the world. Calculate how many square kilometers of coral reefs are still living.
204,240 km2
400
Swamps are commonly found on...
flat, poorly drained lands
400
In estuaries, fresh water and salt water mix, forming
brackish water
400
Estuaries are extremely productive ecosystems because they continually receive nutrients from _________ and _________.
rivers & oceans
400
constantly changing deposit of sand that forms parallel to the coast formed by waves and tides.
barrier island
400
Humans intentionally create artificial lakes by damming flowing rivers and streams to use them for ( 2 answers)
power,
irrigation,
water storage
recreation.
500
Name two substances that can accelerate eutrophication
Sewage
Fertilizer
Animal Waste
500
Describe how oysters and clams affect estuaries
They filter the estuary making the water clearer
500
What producers make up the base of arctic food webs?
phytoplankton
500
fish or whales
nekton
500
What does bioluminescence mean?
hint: think deep-sea animals
Living things create their own light