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Chapter 1.2

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
bacteria   These are the simplest form of life. They are made up of just one cell and do NOT have a nucleus.  
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cell wall   This protects the bacterium from its surroundings.  
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shape   Bacteria are classified by their external _____. They are either spiral, rod or round shaped.  
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binary fission   This is how bacteria reproduce.  
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nuclei   Neither bacteria nor archaea contain one of these.  
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archaea   This single-celled organism can survive in many extreme environments.  
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methanogens   This type of archaea can survive in swamps and the guts of cows.  
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halophiles   This type of archaea can survive in salty lakes and ponds.  
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thermophiles   This type of archaea can survive in really hot places and really cold places.  
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chlorophyll   The chemical that plants and some bactiera use to make their own food.  
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environment   Bacteria can be classified by how they affect their _____________.  
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producers   This type of bacteria are a food source for other organisms.  
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decomposers   This type of bacteria break down dead or decaying organisms.  
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parasites   This type of bacteria can either help or harm its host.  
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helpful   This type of bacteria is found in yogurt.  
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harmful   This type of bacteria can poison bodies.  
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Created by: srandall
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