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Ultimate study stack

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   The basic structure and function in all living things  
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organism   A living thing  
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nucleus   The organelle that directs all of a cell's activities  
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cell membrane   The organelle that protects the cell, holds it together, and controls what goes into or out of the cell  
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cell wall   The part that protects the cell and holds it together  
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cytoplasm   A jelly like substance that contains chemicals that keep the cell healthy  
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chloroplast   It makes food for the plant  
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multi-cell organism   An organism with more than one cell  
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single-celled organism   An organism with one cell  
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microorganism   An organism that is to small to see with the naked eye  
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chromosome   They hold information about the cell characteristics  
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inherited trait   A characteristic passed from parents to their offspring  
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dominant trait   A trait that appears even if an organism only has one factor for that trait  
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recessive trait   A trait that appears only if an organism has two factors for that trait  
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gene   The part of a chromosome that contains the DNA code for an inherited trait.  
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instinct   A behavior that an organism inherit  
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learned behavior   A behavior that an animal acquires through experience  
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classification   The process of grouping similar things together  
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kingdom   A major, large group of similar organisms  
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species   A unique kind of living organism  
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vertebrate   An animal with a backbone  
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invertebrate   An animal without a backbone  
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mammal   Mammals have hair and produce milk for their young  
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bird   All birds have feathers, but not all birds can fly. smoe birds fluff up thier feathers to help keep it warm  
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reptile   Reptiles have scaly skin, and most lay their eggs on land  
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amphibian   Amphibians begin life in water, but when they are adults, they live on land  
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fish   Fish have scales and live their entire lives in water  
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electric charge   A basic property of the tiny particles that make up matter and can be positive or negative  
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static electricity   The buildup of electric charges in one place  
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electric current   A flow of electric charges  
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electric circuit   A continuous pathway that can carry an electric current  
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series circuit   An electric circuit with only one path for current  
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parallel circuit   An electric circuit with two or more paths for current  
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resistance   How much a material opposes, or resists, the flow of electric current  
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short circuit   A flaw in a circuit that allows a large current to flow through where it isn’t wanted  
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conductor   A material through which heat and electricity flow easily  
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insulator   A material that slows the flow of heat and electricity  
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electromagnet   A magnet that has coils of current-carrying wire around an iron core  
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physical change   A change in which a substance remains the same substance  
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mixture   A combination of two or more different substances  
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physical property   A trait—such as color, shape, or hardness—that describes a substance by itself  
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chemical property   A property that involves the ability of a substance to react with other materials to form new substances  
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chemical change   ] A change in which a substance or two becomes a new substance or two  
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compound   A substance made of two or more different elements  
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law of conservation of mass   The mass of the products of a chemical reaction equals the mass of the reactants  
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topography   Surface landforms of an area  
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weathering   The process of wearing away rocks by natural means  
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erosion   The process of moving sediment by wind, moving water, or ice  
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delta   An area of new land at the mouth of a river, formed from sediments carried by the river  
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sinkhole   A large hole formed when the roof of a cave collapses  
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earthquake   A shaking of Earth’s surface, caused by movement of rock in the crust  
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