Study sets, textbooks, questions
Upgrade to remove ads
Aquatic Ecosystem Study Guide
Terms in this set (45)
Which of the following is not an environmental function of wetlands?
The types of organisms found in a pond or lake depend on
the amount of sunlight available, the temperature of the water, the presence of nutrients. ( All of the above)
In the ___ zone, life is diverse and abundant
In the ___ zone, the water is cool and dark.
Most pollutants that enter estuaries break down over time, yet they are still considered a problem because
it is the volume of the pollutants, more than the time factor, that harms estuaries.
What mainly distinguishes nekton from benthos?
one swims freely and the other often lives attached to a hard surface.
are ecosystems where both fresh water and salt water are present.
Which organism produces most of the food in an aquatic ecosystem?
The arrangement of organisms in the open ocean is determined by the
amount of nutrients and sunlight that are available.
Which of the following is not characteristic of wetlands?
Wetlands are limited to inland freshwater environmental.
An estuary functions as a mineral trap due to
the mixing action of river water and ocean water.
Estuaries are very productive ecosystems because they receive fresh nutrients from
rivers and oceans
Coral Reefs are intricately shaped rocklike structures that are formed as a result of
the secretion of calcium carbonate by tiny marine animals.
What are the two main types of freshwater wetlands?
marshes and swamps
Which of the following is not characteristic of salt marshes and mangrove swamps?
Both are dominated by marsh grasses.
Which ecosystem has the highest level of salinity?
Which of the following is a threat to coral reefs
oil spills, sewage, pesticides (All of the above)
Why doesn't photosynthesis occur in deep ocean water?
There is no sunlight.
What causes most coastal pollution in the United States?
industrials waste and sewage
What adaptation prevents phytoplankton from sinking into deep waters?
Swamps are commonly found on
Flat, Poorly drained land.
The majority of marine organism are found in
Shallow, coastal reefs
As they flow down a mountain to flatter ground, rivers generally becomes
wider, warmer, slower (All of the above)
Which of the following is not correct?
Rivers generally move faster, and their oxygen levels decreases, as they near the ocean.
Two threats to ocean ecosystem are
nutrient runoff and industrials waste discharges, overfishing and entanglement of marine mammals in trawls nets, sewage and algal blooms. (All of the above)
Plankton form the ____ of the marine food wed.
The least productive marine ecosystem is the __
In estuaries, fresh water and salt water mix, forming a ___ trap.
A ___ lake has a large amount of plant growth due to nutrients.
Excessive nutrient growth in an aquatic ecosystem can be accelerated by
Barnacles are a type of ____, or bottom-dwelling, organisms.
Fish are a type of _____, free-swimming, organisms.
Long, thin _____ islands typically run parallel to a shore.
The amount of dissolved salts in water is known as ___.
The water in salt marshes is saltier than the water in ___ marshes.
Upstream, a river is usually cold and flows ____ through shallow riverbed.
Downstream, a river often widens and flows more _____.
Coral polyps secrete skeletons of _____ that slowly accumulate and form coral reefs.
Corals live only in shallow, ____ water where there is enough light for photosynthesis.
Because water ____ sunlight, photosynthesis is limited to the upper 100 meters of the ocean.
Most ocean pollution can be traced to activities on
Three groups of aquatic organisms include plankton,______, and benthos.
The two types of plankton include microscopic animals called _____.
Most of the food in aquatic ecosystems is produced by ___.
Marshes are dominated by ____ plants.
Sets found in the same folder
chap 6 envisci
Chapter 4 Environmental Science
Chapter 6: Biomes and Aquatic Ecosystems
Sets with similar terms
Environmental Science Midterm 7
Env. Chapter 7 Questions (Off the Test)
Chapter 7 ESS
enviormental science concept review
Other sets by this creator
English Study Guide
Other Quizlet sets
Hydrology Science Test Review
Environmental Science Midterm