Ecosystems · Botany

What occurs during the process of 'biological magnification' (biomagnification)?

  1. Energy increases as it moves up the food chain.
  2. The population of producers increases rapidly.
  3. Toxins increase in concentration in the tissues of organisms at higher trophic levels.
  4. Nutrients are recycled back into the soil by decomposers.
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Correct answer: Toxins increase in concentration in the tissues of organisms at higher trophic levels.

Biomagnification happens when persistent chemicals, like mercury or DDT, are not metabolized and become more concentrated as they are passed from prey to predator. This often leads to toxic levels in top-tier predators.

Difficulty: Medium Question 7 of 20

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