Biology for IGCSE & O level - Variation And Selection (Section 4 - No. 15)
Based on the provided text on tomcod fish, what is an example of the result of the natural selection?
The increased amounts of PCBs in the Hudson River.
The fish developing resistance to PCBs.
The death of all the tomcod fish.
The fish living in a different area.
Explanation
The fish developing resistance to PCBs due to the process of natural selection
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