Using the demographic terms presented in this chapter, compare and contrast the populations of ...

Answer to q. 1

Concepts to Consider: Highly developed countries have low birth rates, relatively low
infant mortality rates, lower replacement-level fertility, longer life expectancies, higher per
capita GNI PPPs, age structure diagrams with a relatively narrow base, and may have a
stationary population; less developed countries have high birth rates, relatively high infant
mortality rates, higher replacement-level fertility, shorter life expectancies, lower per capita
GNI PPPs, age structure diagrams with relatively broad bases, and growing populations.

Answer to q. 2

Concepts to Consider: r-selected organisms are small in size, mature rapidly, have many
offspring, exhibit little parental care, and typically exhibit type III survivorship curves; Kselected
organisms are larger in size, mature slowly, have few offspring, exhibit much
parental care, and typically exhibit type I survivor-ship curves. r-selected organisms are often
pest or weedy species such as mice, house flies, or dandelions; K-selected organisms
include many species that are endangered, such as whales or elephants, or long-lived plants,
such as palm trees, that produce fruits (offspring) that are large in size but few in number.