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Vocab

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Term
Definition
Sporaneous Generaton   Hypothesis that states that life can spring from nonliving matter  
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Metabolism   sum total of all chemical activities in an organism  
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Digestion   process by which food is broken down into simpler substance  
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Respiration   Process in which simple food substance such as glucose are broken down and the energy they contain is released.  
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Excretion   Process of getting rid of wasted materials.  
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Life span   maximum length of time an organism is expected to live.  
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Stimulus   signal to which an organism reacts to a change in an environment.  
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Response   some action or movement of an organism brought on by a stimulus.  
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Sexaule Repourduction   repoduction usually involving two parents in which a sex cell from each parent unite to form offspring  
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asexual reproduction   eproduction requiring only one parent.  
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homeostasis   ability of an organism's to keep conditions inside its body the same even though conditions in its external enveriment change  
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elements   pure substance that cannot be separted into simpler substance by ordinary chemical reaction  
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compounds   two or more elements chemically combined  
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organic compounds   compound found in all living things that contain the element carbon.  
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carbohydrates   enegry rich substance found in food such as vegables cerals grains and breads.  
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fats   enegry and also helps support and cushen the body.  
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Proteins   sustance used to to buid and repair cells  
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amino acids   building block of proteins.  
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Enzymes   chemical substance that helps control chemcal reactions.  
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nucleic acids   anorganic compound that stores info that helps the body make protein  
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RNA   acid that reads the genedic info carried by dna and guieds the protien process.  
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Dna   nuceic needed to build proteins and carrieds genic info about an organisms.  
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