Which two additional statements would most strengthen the student's explanation of how the tomcod have evolved through natural selection?
Understand the Problem
The question is asking which two additional statements would most strengthen the explanation of how the population of fish evolved through natural selection, particularly in relation to the current context of PCB resistance among Tomcod fish in the Hudson River. The goal is to identify supporting statements that enhance understanding of the evolution process described.
Answer
The release of PCB increased selective pressure. Resistant fish were more likely to reproduce.
The final answer is: The release of PCB into the river greatly increased the selective pressure favoring resistant tomcod. The fish who were resistant to PCBs are more likely to reproduce successfully, passing on the advantageous trait.
Answer for screen readers
The final answer is: The release of PCB into the river greatly increased the selective pressure favoring resistant tomcod. The fish who were resistant to PCBs are more likely to reproduce successfully, passing on the advantageous trait.
More Information
The presence of PCBs in the river provided a selective pressure, allowing resistant tomcod to thrive and pass on their genes, demonstrating natural selection.
Tips
A common mistake is not connecting the presence of PCBs with the selective pressure that led to the evolution of resistance.
Sources
- Pollution drives evolution in the Hudson River - caryinstitute.org
- Which two additional statements would most strengthen ... - Gauth - gauthmath.com
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