Multiple choice

Accumulation of non-biodegradable substances in different trophic levels is called

  1. biological degradation

  2. biological magnification

  3. biological concentration

  4. biological deposition
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Biological magnification (also called biomagnification) refers to the process where non-biodegradable substances like pesticides or heavy metals accumulate in increasing concentrations as they move up the food chain. Organisms at higher trophic levels consume many organisms from lower levels, concentrating these toxins.

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