Warm Up 9

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Warm Up 9

• 3/24
• Energy pyramids show the amount of _________ at
  each trophic level.
• Only _____ of energy available in one trophic
  level is transferred to organisms at the next
  trophic level
• The rest of the energy is released as _________.
• 4-7 Fill in the blank

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Most common elements of LIFE

• Hydrogen (H)- 59
• Oxygen (O)- 24
• Carbon (C)- 11
• Nitrogen (N)- 4

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How does matter move among the living and
nonliving parts of an ecosystem?

• Matters recycle within between ecosystems in
  biogeochemical cycles

• One way flow of energy

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Nutrient Cycles

• Nutrient chemical substance that an organism
  needs to sustain life
• Carbon
• Nitrogen
• - Phosphorous

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Carbon Cycle

• Key ingredient of living tissues, found in rocks,
  component of animal skeleton, carbon dioxide gas

Stored in Atmosphere, Oceans, Underground
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Nitrogen Cycle

• Makes amino acid used to build protein
• Makes up 78 of atmosphere

Stored in Atmosphere, soil, tissue of animals
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• Nitrogen fixation- bacteria in the soil and on
  roots of plants called legumes convert nitrogen
  gas into ammonia
• Denitrification- Soil bacteria convert nitrates
  into nitrogen gas

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Why is nitrogen cycle important?

• Human activity add an abundance of nitrogen
• Acid rain
• Nitrous oxide destructs ozone
• Waste water
• Algal bloom

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Nutrient Limitation

• Primary productivity rate at which organic
  matter is created by producers

When nutrients are scarce and cycle slowly
Large input of limiting nutrient can also happen.
What is an example?
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Water Cycle

• Stored in Land, Atmosphere, Ocean