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								What are the four types of cells in the human body?									 
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								Muscle, neurons, connective, epithelial									 
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								How many distinguishable kinds of cells are present in the human body									 
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								200									 
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								In general, what do Muscle Cells do?									 
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								Specalized for contracting to produce movement									 
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								In general, what do connective tissues do?									 
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								Connect and support body structures.  
								ex. bone, collagen, cartilage, blood  | 
						
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								In general, what do epithelial cells do?									 
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								Secretion, absorption, protection.									 
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								![]() What kind of cells are these?  | 
							
							
								 
								Muscle									 
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								![]() What kind of cell is this?  | 
							
							
								 
								Epithelial									 
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								![]() What kind of cell is this?  | 
							
							
								 
								Nerve cell									 
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								![]() What kind of cell is this?  | 
							
							
								 
								Connective cell									 
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								What is the hierarchial organization of the body?									 
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								Cells -> Tissues -> Functional Units -> Organs -> Organ systems -> Organism									 
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								What are tissues?									 
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								Aggregate of specialized cells / collection of cells performing similar functions									 
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								What are functional units?									 
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								Sub-units of organs. 
								Ex. Nephron in a kidney, a lobe in a brain, lens of the eye.  | 
						
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								What are organs?									 
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								When two or more tissues combine to make up structures that perform particular functions.									 
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								What is an Organ System? Give an example.									 
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								A collection of organs that function together to accomplish a particular task. 
								Ex, Cardiovascular, respiratory, urinary, nervous  | 
						
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								What are the tissues and organs in the cardio vascular system?  What is function of the cardio vascular system?									 
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								Tissues and organs:  Heart, blood vessels, blood. 
								Transport molecules in body via blood stream.  |