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1.3,1.4,2.4

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Term
Definition
virus   A nonliving disease-causing particle that uses the martials inside cells to make copies of itself. This consists of genetic material enclosed in a protein coat.  
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binary fission   A form of asexual reproduction by which some single celled organisms reproduce. The genetic materials is copied, and one cell divides into two independent cells that are each a copy of the original cell.  
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bacteria   A large group of one-celled organism that sometimes cause disease.  
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decomposer   An organism that feeds on and breaks down dead plant or animal matter.  
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producer   An organism that captures energy from sunlight and transforms in into chemical energy that is stored in energy-rich carbon compounds. Often are a source of food for other organisms.  
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parasite   An organism that absorbs nutrients from the body of another organism, often harming it in the process.  
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host cell   A cell that a virus infects and uses to make copies of itself.  
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algae   Protists that live mostly in water and use sunlight as a source of energy.  
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plankton   Mostly microscopic organisms that drift in great numbers through bodies of water.  
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protist   These are some of the most common single-celled organisms found on Earth.  
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protozoa   An animal like protist that eats other organism or decaying parts of other organisms.  
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hyphae   Threadlike tubes that form the structural parts of the body of a fungus.  
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spore   A single reproductive cell that can grow into a multicellular organism.  
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lichen   An organism that results from a close association between single-celled algae and fungi.  
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fungus   Mold, mushrooms and yeast are examples of this decomposer.  
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