B3: Life on Earth

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  • B3: Life on Earth
    • Adaptations
      • Species adapt to increase chance of survival and reproduce
      • Cactus
        • Spikes
        • Deep + wide root system
        • Large leaves
      • Fish
        • GIlls
        • Swim bladder
        • Streamlined
    • Food Chains
      • Show the feeding relationships
      • Energy is feed up the food chain
        • Energy Transfer
          • All living things get their energy from the sun
          • Ways energy is tranferred
            • Phtosynthesis
            • Eating other animals/plant
            • Decaying organism deeds of dead matter
          • In the food chain
            • Energy is lost through
              • Heat
              • Excretion
              • Trapped in bones
            • Calculating energy efficiency
              • Input energy / Output energy X 100
    • Food Webs
      • Show's inter-realation
      • Shows inter-dependence
    • Ecosystems
      • An area containing self-sufficient sustained community of organisms their physical surrounds
      • Contains
        • Autotrophs
          • Self-feeders (plants)
          • Herbivores
        • Hetrotrophs
          • Conumsers
          • Carnivores
    • Nitrogen cycle
      • Nitrogen is recycled by ...
        • Ingested by animals
        • Excess nitrogen is removed by extraction
        • Dead animals decay into nitrates
      • Nitrogen-fixing
        • Removes it from the air
      • Denitrification
        • Nitrates broken into nitrogen
    • Carbon Cycle
      • Carbon is recycled by ...
        • Photosythesis
        • Combustion
        • Decomposer organism release CO2

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