APFIVE Biomagnification of DDT in a Food Web
A study of peregrine falcons in a coastal ecosystem revealed high concentrations of DDT in their tissues and significant eggshell thinning. Which process best explains why these top predators exhibited more severe effects than organisms at lower trophic levels?
A
Biomagnification of persistent compounds through the food web
B
Natural selection for pesticide resistance
C
Biogeochemical cycling of nitrogen compounds
D
Direct exposure to agricultural runoff
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