Energy Flow Through an Ecosystem

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Energy Flow Through an Ecosystem

• Food Chains, Food Webs, Energy Pyramids

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Its about ENERGY FLOW

1. Photosynthesis chemical reaction by which
   plants use light energy to make sugar from water
   and carbon dioxide.

6CO2 6H2O ?C6H12O6 6O2
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Its about ENERGY FLOW

• 2. Producers organism that makes its own food
  using the process of photosynthesis.

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Its about ENERGY FLOW

• 3. Primary Consumer An organism that cannot
  make its own food and must feed on producers

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Its about ENERGY FLOW

• 4. Secondary Consumer - A consumer that feeds on
  primary consumers

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5 kinds of consumers

• Herbivore only eats plant material (primary
  consumer)
• 2. Carnivore only eats animal materials
  (secondary consumer)
• 3. Omnivore eats both plant and animal material
• 4. Decomposer consumes waste and dead organisms
• 5. Scavenger feeds on the scraps left over from
  a carnivore kill

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Food Chain - A simple model of the feeding
relationships in an ecosystems
How is it organized
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How is it organized Food Web

• In an ecosystem, arrangement of several
  overlapping food chains
• They show the feeding relationships in an
  ecosystem

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How is it organized Energy Pyramid

• Energy Pyramid demonstrates the flow of energy
  through a food chain
• Available energy decreases as you move up.
• Each level uses up 90 of the energy passing on
  only 10 to the next

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