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Page 1: characteristics of life - Mrs. Kwon's Online Classroom!kwonscience.weebly.com/uploads/1/3/0/3/13033724/characteristics_of_life.pdf · • Biology – Is%the%science%thatemploys%the%scien1fic%method%to%

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Characteris1cs  of  Life  

Page 2: characteristics of life - Mrs. Kwon's Online Classroom!kwonscience.weebly.com/uploads/1/3/0/3/13033724/characteristics_of_life.pdf · • Biology – Is%the%science%thatemploys%the%scien1fic%method%to%

•  Biology  –  Is  the  science  that  employs  the  scien1fic  method  to  study  living  

things.  –  The  Greek  word  bios  means  “life,”  and  –logy  means  “study  of.”  

Objec&ve:  Define  Biology,  and  the  meaning  of  Greek  root.  

Page 3: characteristics of life - Mrs. Kwon's Online Classroom!kwonscience.weebly.com/uploads/1/3/0/3/13033724/characteristics_of_life.pdf · • Biology – Is%the%science%thatemploys%the%scien1fic%method%to%

•  What  does  “-­‐logy”  mean?  – Study  of  

•  What  does  “Bio-­‐”  mean?  – Life  

•  What  does  Biology  study?  – Life  

•  Give  examples  of  what  Biology  studies.  – Cells  – Nature  – Organisms  

Objec&ve:  Define  Biology,  and  the  meaning  of  Greek  root.  

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•  What  is  living?  •  What  is  non-­‐living?  

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Objec&ve:  Describe  some  characteris1cs  of  living  things.  

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Page 12: characteristics of life - Mrs. Kwon's Online Classroom!kwonscience.weebly.com/uploads/1/3/0/3/13033724/characteristics_of_life.pdf · • Biology – Is%the%science%thatemploys%the%scien1fic%method%to%

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Revise/Edit  your  list  of  6  characteris1cs  

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1)  Are  made  up  of  units  called  cells.  

– Cell:  the  smallest  unit  of  an  organism.  

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2)  Reproduce  

– Sexual  reproduc&on:  cells  from  two  different  parents.  

– Asexual  reproduc&on:  cells  from  a  single  parent.  

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3)  Grow  and  develop  – Example:    • From  concep1on  to  birth  to  childhood  to  adulthood  

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4)  Obtain  and  use  energy.  – Metabolism:  Combina1on  of  chemical  reac1ons  through  which  an  organism  builds  up  or  breaks  down  material.  – Example:    • Ea1ng  • Photosynthesis  

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5)  Respond  to  their  environment.  – Organisms  detect  and  respond  to  s/muli.  •  S1mulus  –  is  a  signal  to  which  an  organism  responds.  

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6)  Maintain  a  stable  internal  environment.  

– Homeostasis  –  the  ability  of  an  organism  to  maintain  a  constant  internal  environment.    

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Objec&ve:  Sequence  the  different  levels  of  organiza1on,  from  biosphere  to  molecules.  Objec&ve:  Explain  how  life  can  be  studied  at  different  levels.  

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•  The  part  of  the  Earth  that  contains  all  ecosystems  (life).  

Objec&ve:  Sequence  the  different  levels  of  organiza1on,  from  biosphere  to  molecules.  Objec&ve:  Explain  how  life  can  be  studied  at  different  levels.  

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•  Living  organisms  and  their  nonliving  surroundings.  

Objec&ve:  Sequence  the  different  levels  of  organiza1on,  from  biosphere  to  molecules.  Objec&ve:  Explain  how  life  can  be  studied  at  different  levels.  

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•  Different  group  of  organisms  of  the  same  species  that  live  together  in  a  defined  area.  

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•  Groups  of  organisms  of  one  species  (type)  that  live  in  the  same  area.  

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•  Individual  living  things.  – Example:  human,  bacteria,  tree,  etc.  

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Tissue  →  organs  →  organ  systems  

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• Smallest  func1onal  unit  of  life.  

– Example:  plant  cells,  animal  cells  

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•  Groups  of  atoms;  smallest  unit  of  most  chemical  compounds  

– Example:  Water  &  DNA  

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•  Life  can  be  studied  on  any  of  the  levels  of  organiza1on.    – Example:  •  Zoologist  –  study  animals  

•  Botanists  –  study  plants  •  Paleontologist  –  study  ancient  life    

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