CHACTERISTIC OF LIFE

• Life


  A high degree if order
• Biological organization 


  Based in a hierarchy of structural levels
• Biological organization

  Atom - Molecule - Macromolecule - cell - tissue - organ - organ system - organism - population - community - ecosystem - biosphere
• Atom


  The lowest level that are ordered into complex biological molecules
• Organelles 


  Many molecules that are arrange into minute structure and which are the components of cells
• Cells


  The subunits of organisms, the units of life
• Multicellular 


  Exhibiting three major structural levels above the cell; tissue, organ, organ system.
• Population 


  Localized groups of organisms belonging to the same species
• Community 


  Population of several species in the same area
• Metabolism 


  The process of getting energy from nutrient molecules of food and using it to maintain the structure and function of a cell
• Anabolism 


  Is called the structure or building up phase
• Anabolism 


  Building up protoplasm from simple compounds and elements which are product of digestion
• Catabolism 


  The destructive or breaking down phase
• Ecosystem  


  The population interacts with their physical environment
• Homeostasis 


  The maintenance of a stable level of internal conditions
• Reproduction 


  Living things become capab of perpetuating their own kind
• Reproduction 


  It can be asexual or sexual
• Asexual 


  Only a single parent is needed
• Sexual 


  Requires two parents; involves gametes or sex cell
• The ability of living things to respond often results in movement
• Adaptation 


  Special characteristics that enable plants and animals to be successful in a particular environment
• Adaptation 


  Afford the organisms a better chance to survive
• Problem 


  Identifying or defining a problem
• Hypothesis 


  Accumulating data and formulating tentative hypothesis
• Experiment


  Testing hypothesis
• Conclusion 


  The outcome result of the tested data