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They use the oxygen from the water and must remain in constant motion to obatin it.
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∙ 10y ago
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Aquatic ecosystem can be divided into?
freshwater,estuarine,and marine! -ash (:
How does algal growth caused by agricultural waste kill marine organisms?
BY Blocking the Sunlight and Depleting oxygen
Is the photic zone in the marine and freshwater ecosystems?
yes
Are diatoms freshwater marine or both?
Diatoms can be found in oceans, freshwater, and also in soils on damp surfaces
Do organisms take oxygen from the air and the water?
Yes organisms take oxygen from the air and aquatic organisms take oxygen from the water using their gills. Some do. Most only from one or the other. For example a tuna fish gets pretty much all its oxygen from oxygen dissolved in water. Humans get all our oxygen from the air. Mudskippers get oxygen from both. Yes. Land animals take in oxygen that plants release using their noses. On the other hand, aquatic or marine animals take in oxygen using their gills.
Miroscopic organisms in waters of freshwater and marine environments?
Plankton
What are tiny organisms that float near the surface of freshwater and marine envioments called?
the answer is phytoplankton or plankton
How do nekton moved?
nektonThe collection of marine and freshwater organisms that can swim freely and are generally independent of currents, ranging in size from microscopic organisms to whales.
Who studies organisms in water?
In sea water it's a marine biologist. If the water is fresh it's just a freshwater biologist.
Aquatic ecosystem can be divided into?
freshwater,estuarine,and marine! -ash (:
Are desmids freshwater marine or both?
Marine
What is the difference between freshwater and marine aquarium?
I think marine aquariums are saltwater unlike freshwater that do not have saltwater
How does ciliophora role in the environment?
their role in the environment is basically just feeding on the bacteria, algae, and other smaller, organisms in their marine and freshwater habitats
What does the moving water have in it?
Marine life and oxygen for those organisms to survive ! And sediments, which are none living !
What two major factors do marine organisms depend on for their survival?
They depend on FOOD and DISSOLVED OXYGEN.
How does algal growth caused by agricultural waste kill marine organisms?
BY Blocking the Sunlight and Depleting oxygen
How do plankton differe from nekton?
Plankton is the mass of mostly microscopic organisms that float or drift freely in freshwater and marine environments and Nekton are all organisms the swim actively in open water, independent of currents.
