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Single-celled organism vocabulary

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These are bacteria that transform energy from sunlight into energy that can be used by cells.   algae  
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These are the cells that viruses infect in order to make copies.   host cells  
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These organisms drift in water instead of swimming through it.   plankton  
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These get energy by breaking down chemicals in dead or decaying organisms and recycling them.   decomposers  
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These animal-like protists get their energy by eating other organisms or decaying parts of other organisms.   protozoa  
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These organisms are able to live in harsh, extreme environments.   archaea  
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This name applies to both multicellular protists and single-celled protists that contain chlorophyll and use sunlight as an energy source.   producers  
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These live in very close relationships either inside or on the surface of other organisms.   bacteria  
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These can only be seen with the aid of a microscope.   microorganisms  
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Single-celled organisms reproduce by this process.   Binary Fission  
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This is a small collection of genetic material enclosed in a protein shell.   virus  
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These life forms are the simplest kind of life known on Earth.   bacteria  
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Scientists divide the organisms they identify into these groups.   kingdoms  
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