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vocab for unit 2 living things characteristics, needs, and cycles that support

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Term
Definition
Biosphere   life supporting zone; includes land, water, and air  
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Atmosphere   air, gases on Earth  
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Cell   basic unit of living things  
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Metabolism   energy getting and using balance  
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Stimulus   change in environment (observe with 5 senses), comes first  
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Response   reaction to a stimulus, comes second  
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Reproduction   make more of own kind, so that a species doesn't go extinct  
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Adaptation   built in structure or behavior that helps live  
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Homeostatis   environment changes, but organism's body stays the same  
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Endothermic   body temperature stays same, warm blooded  
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Ectothermic   body temperature changes, cold blooded  
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Competion   fight/struggle with others to meet needs  
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Nitrogen   gas found in atmosphere that must be changed, or fixed, by bacteria to be useable to living things  
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Oxygen   gas animals use to go through respiration to make energy  
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Carbon Dioxide   gas plants use to go through photosynthesis to make energy  
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