Biology Energy in Biomass

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  • Biology Energy in Biomass
    • Pyramids of Biomass
      • Radiation from sun main source of energy for all living things
        • Sun's energy captured by green plants and algae during photosynthesis to make new biomass
    • Energy transfers
  • Radiation from sun main source of energy for all living things
    • Sun's energy captured by green plants and algae during photosynthesis to make new biomass
  • Biomass is the dry mass of living material in an animal or plant
    • Pyramids of Biomass
    • Mass of living material at each stage is less than at the previous stage
      • Biomass at each stage can be drawn in a pyramid of biomass
        • Mass of living material at each stage is less than at the previous stage
        • The amounts of biomass and energy get less  at each successive stage in  a food chain
          • Energy transfers
        • This is because some material and energy are always lost in waste materials, and some are used for respiration to supply  energy for living processes, including movement. Much of the energy is eventually transferred by heating to the surroundings.
          • Decay processes
            • Biology Energy in Biomass
            • Living things remove materials from the environment as they grow. They return them when they die through the action of the decomposers
              • Decay processes
              • Materials decay because they are broken down  (digested) by microorganisms. Microorganisms digest materials faster in warm, moist conditions. Many of them also need oxygen
                • The decay process releases substances that plants need to grow.
                  • In a stable community the process that remove materials (particularly plant growth~) are balanced by the processes that return materials
                    • The Carbon Cycle
                      • The constant cycling of carbon in nature is known as the carbon cycle
                        • The Carbon Cycle
                        • Carbon dioxide is removed from the atmosphere by photosynthesis. It is returned to the atmosphere through respiration and combustion
                          • Recycling organic waste
                            • Recycling organic kitchen and garden waste is necessary to reduce landfill, reduce the production of methane and to recycle the minerals and nutrients in the organic material
                              • Recycling organic waste
                              • Composting organic waste can be done in a variety of different ways

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