Chapter 3: Ecology

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Chapter 3 Ecology

• 3-3 Cycles of Matter

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Recycling in the Biosphere

• Matter is recycled within and between ecosystems
• Biogeochemical Cycles cycles that connect
  BIOlogical, GEOlogical, and CHEMical aspects of
  the biosphere

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The Water Cycle

• Water enters the atmosphere by 2 ways
• Evaporation water changes from liquid to gas
• Water evaporates from bodies of water (ocean,
  lake, etc.)
• Transpiration water evaporating from the leaves
  of plants

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Nutrient Cycles

• Nutrients chemical substances that an organism
  needs to sustain life
• They build tissue and carry out essential life
  functions
• Ex
• Humans drink milk
• Milk contains calcium
• Calcium is needed to grow strong bones

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Carbon Cycle

• 4 main types of processes that moves carbon (C)
  through its cycle

Biological Processes Mixed Biogeochemical Processes
Photosynthesis (removes C) Burial/decomposition of organisms produce coal and petroleum (fossil fuels) when under pressure (releases C)
Respiration (releases C) Burial/decomposition of organisms produce coal and petroleum (fossil fuels) when under pressure (releases C)
Decomposition (releases C) Burial/decomposition of organisms produce coal and petroleum (fossil fuels) when under pressure (releases C)
Geochemical Processes Human Activities
Erosion (releases C) Mining (releases C)
Volcanic Activity (releases C) Cutting/Burning Trees (releases C)
  Burning Fossil Fuels (releases C)
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Carbon Cycle
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Nitrogen Cycle
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Phosphorous Cycle