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Diffusion and osmosis.

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Q: Unicellular organisms obtain oxygen and dissolved substances from their surroundings by?
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Related questions

How do unicellular organisms reproduce?

Most of the unicellular organisms reproduces asexually.


What diseases cause unicellular organism?

Diseases do not cause unicellular organisms; unicellular organisms cause diseases.


What kingdom includes complex multicellular organisms that obtain food by breaking down other substances in their surroundings?

Kingdom Animalia contains multicellular organisms that ingest their food.


What disadvantages do Unicellular organisms have when compared to Multicellular organisms?

Colonies of unicellular organisms can work together.


Are unicellular organisms primitive?

Yew , unicellular organisms are more primitive as compared to multicellular organisms .


How do unicellular organism digest?

Unicellular organisms digest by letting only specific substances in itself. It digests by tat or just loom ot up on ask.com. It should give you the answer there. :D


Did unicellular or multicellular organisms evolve first?

Unicellular organisms evolved first; and from them evolved the multicellular organisms. But that leads onto another question as to why multicellular organisms evolved.


Is a Stentor Multicellular or Unicellular?

Stentors are indeed unicellular organisms.


Do all kingdoms include some unicellular organisms?

Not all kingdoms include unicellular organisms. The kingdoms that do not have unicellular organisms include the plantae and animalia kingdom.


What are the examples of unicellular organisms?

the examples of unicellular organisms are BACTERIA, CHLASMYDAMONAS, EUKARYOTES (EUKARYYOTA).


Do modern organisms have unicellular ancestors?

All modern organisms have unicellular ancestors. Even you.


What organism is unicellular and prokaryotic?

All prokaryotic organisms are unicellular. Eukaryotic organisms are multicellular