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Biological Magnification Phenomenon Quiz
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Biological Magnification Phenomenon Quiz

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@PreciousSapphire

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Questions and Answers

What is biological magnification?

  • The decrease in concentration of a toxic chemical with increasing trophic levels in a food chain
  • The constant concentration of a toxic chemical with increasing trophic levels in a food chain
  • The concentration of a non-toxic chemical with increasing trophic levels in a food chain
  • The increase in concentration of a toxic chemical with increasing trophic levels in a food chain (correct)

    • At which trophic level do harmful chemicals enter the food chain?

  • Tertiary consumer level
  • Secondary consumer level
  • Producer level (correct)
  • Primary consumer level

    • How do harmful substances like DDT enter the food chain?

  • Plants absorb these harmful chemicals along with water and minerals from the soil (correct)
  • Harmful chemicals are only present at the top trophic level
  • Harmful chemicals are not absorbed by any organisms in the food chain
  • Animals directly produce these harmful chemicals during digestion

    • Which members of the trophic levels have the greatest concentration of harmful chemicals?

    <p>Members of the last trophic level</p> Signup and view all the answers

    Biological magnification refers to the process of increase in the concentration of a toxic chemical with increasing trophic levels in a food chain. Harmful and poisonous substances such as DDT, pesticides to kill pests on plants enter the food chain. The plants absorb these harmful chemicals along with water and minerals from the soil. They enter the food chain at the producer level and then transfers to the next trophic level. Thus the members of the last trophic level have the greatest concentration of these ______.

    <p>chemicals</p> Signup and view all the answers

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