B2b Energy Flow


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  • B2b - Energy Flow
    • Energy comes from the sun
      • Animals can't take in this energy
      • Organisms have 7 life processes (MRSNERG)
    • Plants take in light energy from the sun
      • They convert it to an energy that is stored as glucose
      • Plants are producers
        • Animals are consumers
    • Herbivore eats plants
      • Carnivores eat meat
        • Omnivores eat meat and plants
    • Energy is passed between trophic levels
      • Arrows show pass of energy
        • Food webs exist because consumer belongs to more than 1 trophic level
    • Pyramids show feeding relationships
      • Pyramid of numbers = number of organisms in a food chain
      • Pyramid of biomass always has a large bar at the bottom
        • Resembles pyramid
        • Biomass = dry mass of living matter
    • Energy is wasted at each trophic level
      • Respiration
      • Egestion
      • Efficiency = Energy used/ energy supplied x 100
  • Herbivore eats plants
    • Carnivores eat meat
      • Omnivores eat meat and plants

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