12. Look at the human population growth curve. How does it compare to the growth curves earlier in the chapter?
- In this growth curve has no carrying capacity (overall), like the other curves. Like all the other graphs it increases in population, but in this curve the growth rate is not constant. There are some big-bang reproductions which give a sudden increase in population, and there are sudden decrease in population (ex. The Plague)
13. Have humans reached K? What factors are significant when explaining our growth curve?
- Humans might have reached K, but it is not predictable. The increase in technology have allowed humans to raise the carry capacity level. Sanitation and medicine help the human live longer and thus increasing the population.
14. Look at the age structure diagrams of different countries. How might the age structure influence policy?
- Kenya has a large fraction of individuals who are young and likely to reproduce in the near future. In contrast, Italy’s population is distributed more evenly through all age classes, with a moderate proportion of individuals beyond prime reproductive years. The US has a fairly even age distribution.
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