Which of the following factors causes extremely high levels of toxic chemicals in fish-eating birds?

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#Question id: 12677

#Section 5: Applied Ecology & Evolution

Aquatic ecosystems that are most readily damaged by acid are those that lack an important buffer that dissolves into the runoff after a precipitation event. What is this buffer?

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#Question id: 10169

#Section 5: Applied Ecology & Evolution

Which of the following is not the effect of C3 and C4 cycle in hot and dry climates ?

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#Question id: 11263

#Section 4: Behavioural Ecology

Studies of parasitism of kentucky warblers by brown-headed cowbirds have shown that fragmentation has ____________the rate of parasitism because of ____________ edge habitat and ____________ habitat quality.

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#Question id: 10846

#Section 2: Evolution

Many birds readily feed upon periodic cicadas when they emerge as adults. This interaction between birds and cicadas represents an example of

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#Question id: 16869

#General Aptitude

Hardly had he left ………. his brother came.