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Cumulative Vocab Test Words

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Term
Definition
cell membrane   The protective layer that covers the cell’s surface, acts as a barrier, and controls which materials go into and out of the cell.  
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nucleus   A membrane enclosed organelle found in eukaryotic cells that contains most of the cell’s genetic material and controls the activities of the cell.  
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organelle   Structures within a cell that perform specific functions.  
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specialization   Each cell in a multicellular organism having a specific function.  
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tissue   A structure that is made up of a group of cells that work together to perform a specific job.  
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organ   A structure that is made up of two or more tissues working together to perform a specific function.  
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differentiation   The process of a cell becoming specialized to perform a specific job.  
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osmosis   The diffusion of water across a cell membrane from an area of high concentration to low concentration.  
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heredity   The passing of genetic material from a parent organism to its offspring.  
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gene   Sections of genetic material that contain instructions for an inherited trait.  
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