the shallow near-shore portion of the photic zone, the water is shallow enough that aquatic plants grow from the mud and reach above the water’s surface.
What is a littoral zone?
100
Where rivers flow into an ocean or inland sea, fresh and salt water are mixed here
What is an estuary?
100
large algae that grows from the floor of continental shelves, supply shelter for food and invertebrates and fish which provide food for sharks and seals.
What is a kelp forest?
200
areas of land that are flooded with water at least part of the year. This combination of dry land and freshwater are enormously rich and productive.
What is a wetland?
200
farther from the shore, where there are no rooted plants. The nutrients and plant growth here make it rich in invertebrates (insect larvae, snails, and crayfish)
What is a limnetic zone?
200
A large body of saline water.
What is an ocean?
200
Source is in the high mountains where melting snow collects and runs downhill due to gravity.
What is a river/ stream?
300
water that is in near constant motion
What is a flowing-water ecosystem
300
below the photic zone, where no sunlight penetrates and
photosynthesis cannot occur.
What is the aphotic zone?
300
When rivers empty into larger bodies of water such as oceans.
What is a mouth?
400
water that does not move or moves slowly
What is a standing-water ecosystem?
400
the very bottom of a body of water
What is the benthic zone?
400
rivers shift from one course to another after going back and forth over a large area and a flat valley is carved out.
What is a food plain?
500
very low salinity levels, less than 0.5 ppt. These ecosystems vary in depth and can either be standing or flowing.
What is a freshwater ecosystem?
500
the upper most layer of an aquatic ecosystem.
What is the photic zone?
500
When water flows slowly it creates wide curvy paths