1) Explain the occurrence
of living fossils, such as the horseshoe crab, which closely resemble their
ancestors known from the fossil record.
2) A cotton farmer
applies a new insecticide against the boll weevil to his crop for several
years. At first, the treatment was successful, but then the insecticide became
ineffective and the boll weevil rebounded. Did evolution occur? Explain.
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