O Level Biology e-Book's MCQs - Complete
Pollution: Pesticides and DDT Quiz App Download & e-Book - 867
Apps:
MCQ:
Along the trophic level, in a food chain, the insecticide amount
- decreases at each trophic level
- increases at each trophic level
- remains unchanged
- may increase or decrease depending on consumption
b
O Level Biology App & e-Book Tests PDF Download
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O Level Biology MCQs eBook Download
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