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Biotic Componentsof an Ecosystem
Biotic componentsThe biotic component is that part of the total environment created by living, interacting organisms.
EcosystemA biological community together with the abiotic environment, characterized by the flow of energy and the cyclin...
Living components: Producers:The sun which is the primary source of energy, givesenergy to the plants to produce food thr...
Consumers:Animals are consumers because they are, directly/indirectlydependent on the food produced by the producers (plan...
Decomposers:Decomposers are micro-organisms that break down complexorganic matter into simple inorganic matter.They obtain...
Food chainsThe interaction of the autotrophic and heterotrophiccomponents in which one organismconsumes another, is called...
Example:
Food webConsists of various food chainsthat interact with one another,therefore, interacting of energyflow within an ecosy...
Example:
Try answer these questions totest your knowledge: What is a biotic component? Give the definition of an ecosystem. What...
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Biotic components of an ecosystem

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Transcript of "Biotic components of an ecosystem"

  1. 1. Biotic Componentsof an Ecosystem
  2. 2. Biotic componentsThe biotic component is that part of the total environment created by living, interacting organisms.
  3. 3. EcosystemA biological community together with the abiotic environment, characterized by the flow of energy and the cycling of inorganic nutrients.
  4. 4. Living components: Producers:The sun which is the primary source of energy, givesenergy to the plants to produce food throughphotosynthesis.Plants use the light, carbon dioxide, water and the greenpigment chlorophyll in their leaves to produce sugars andoxygen.These plants that produce food through photosynthesis arecalled producers.They are autotrophic organisms because they canmanufacture their own food.
  5. 5. Consumers:Animals are consumers because they are, directly/indirectlydependent on the food produced by the producers (plants), theyconsume this food.Consumers therefore have a heterotrophic feeding method –they cannot make their own food and are dependent on theproducers for nutrition.
  6. 6. Decomposers:Decomposers are micro-organisms that break down complexorganic matter into simple inorganic matter.They obtain their energy for the decaying animals and plants.They are heterotrophic animals.We refer to them as saprophytic organisms.They include fungi and bacteria.
  7. 7. Food chainsThe interaction of the autotrophic and heterotrophiccomponents in which one organismconsumes another, is called a food chain.In a food chain there is a continuous flow of energy fromthe sun, through the plants to the various animals.In a food chain there are always a producer and aconsumer.
  8. 8. Example:
  9. 9. Food webConsists of various food chainsthat interact with one another,therefore, interacting of energyflow within an ecosystem
  10. 10. Example:
  11. 11. Try answer these questions totest your knowledge: What is a biotic component? Give the definition of an ecosystem. What components form part of an ecosystem? Briefly describe each of these components. What is the difference between a food chain and a food web? Draw an example of each.(It must be your own design).
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