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Because the ocean is hypertonic to the cell, rending the CV of little to no use.

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Q: Why don't marine unicellular organisms have contractile vacuoles?
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Why would you expect a freshwater amoeba to be more likely to have contractile vacuoles than a marine amoeba?

Because the surrounding freshwater concentration is higher than the salt concentration inside and so all the water from the vacuoles has left because of osomosis. while the marine amoeba has the surrounding salt concentration equal to the concentration inside the vacuole.


Why would you expect a freshwater amoeba to be more likely to ha contractile vacuoles than marine amoeba would?

Marine amoebae live in a saltwater environment. If the vacuoles take in too much salt, it'll suck all the liquidy stuff out of the amoeba itself. Freshwater amoebae are in a freshwater environment so they don't have to worry about that.


Marine protozoa do not have contractile vacuole why?

because marine species are usually in isotonic equilibrium with their environment.


What is the study of marine organisms called?

The study of marine organisms is called as marine Biology. Hope this helps!


Is foraminifera an animal?

The foraminifers are unicellular organisms of the animal kingdom. Foraminifers are any of several large marine protozoans, of the subphylum Foraminifera, that have a calcareous shell with many holes through which pseudopodia protrude.


What is the scientific name for marine life?

Marine life encompasses a wide array of organisms, so there is no single scientific name that covers all marine life. However, the study of marine life is known as marine biology.


Contractile vacuole are not found in marine water forms why?

i don't know thisans plz u tell me ...


What is liquid from the remains of marine organisms?

Fossils are formed from the buried remains of marine organisms. These organisms are under a tremendous amount of pressure and, over time, they fossilize.


Who are marine biologists?

A marine biologist is a person who studies marine organisms in the ocean.


If you can tell me what all things about algae?

Algae is Latin for seaweed. They are a large and diverse group of simple, typically autotrophic organisms, ranging from unicellular to multicellular forms. The largest and most complex marine forms are called seaweeds


What does marine?

Marine is another word for ocean or sea - marine organisms live in the ocean.


What is underwater organisms?

the organisms which adapt themselves to live in marine salt water and carry on their life cycle there with the most possible benefits from it r called marine organisms