Font size
WorksheetsMarine and Freshwater Ecosystems Practice Test
Total questions: 20
Worksheet time: 24mins
All organisms that swim actively in open water, independent of currents are called
Nekton
Benthos
Plankton
Runoff
What is the difference between Point and non-point pollution sources?
Point (Specific location) Nonpoint (broad, all areas)
Point pollution is cased by living things, Non point is caused by man made objects
Point (Broad, all areas) Nonpoint (specific location)
Point pollution is caused by pointy objects, Non Point pollution is caused by large blunt objects
As oceans become deeper, the water pressure ___________________.
increases
decreases
stays the same
What is an example of a lotic water system?
pond
marsh
swamp
river
The picture show a fisherman immediately after catching this fish. What kind of biome was the fish thriving in?
Freshwater, Aquatic
Saltwater, Aquatic
This pond can be described as ___________ and _______________.
Lotic and Eutrophic
Lentic and Eutrophic
Benthic and Eutrophic
Lentic and Oligotrophic
You decide to go swimming in a lake you found while hiking. As you start to walk into the shallow part of the lake, you noticed there are a lot of rooted plants. These plants include submerged and emergent plants because light can reach all portions of this zone. What distance from the shore, lake zone is being described?
eutrophic
littoral
profundal
limnetic
Organism that lives in or on the sediment at the bottom of a lake or river.
benthos
plankton
neuston
periphyton
