MCQ
Concentration of $\ce{DDT}$ is highest in :
- APrimary consumer
- BProducers
- ✓Top consumer
- DDecomposers
✓
Answer
Correct option: C.
Top consumer
The concentration of $\ce{DDT}$ is highest in top consumers due to a phenomenon known as Biomagnification.
Biomagnification refers to an increase in the concentration of toxic chemicals at successive trophic levels. This happens because a toxic substance accumulated by an organism cannot be metabolised or excreted, and is thus passed on to the next higher trophic level. This phenomenon is well known for mercury and $\ce{DDT}.$
Biomagnification refers to an increase in the concentration of toxic chemicals at successive trophic levels. This happens because a toxic substance accumulated by an organism cannot be metabolised or excreted, and is thus passed on to the next higher trophic level. This phenomenon is well known for mercury and $\ce{DDT}.$
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