Further Analysis
1. How
does the amount of genetic variability in a population affect the population?s
ability to adapt to environmental changes? Explain.
2. For
flies to survive an immediate, lethal change in their environment, when do the
genes conferring genetic resistance have to be present in the population?s gene
pool? How do these genes appear in the gene pool?
3. What
happens to the relative proportions of genetic types over time after spraying?
4. How
does smaller population size and slower rate of reproduction affect the
predator population?s ability to survive the rapid environmental changes?
Of what significance is this to the "pesticide treadmill"?
5. What
factors operate to influence a farmer to participate in the pesticide
treadmill?
6. What
environmental impacts result from the pesticide treadmill?
7. How can
humans break out of the pesticide treadmill?
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