Total fertility rates (TFRs) have been increasing since the 1950s in less-developed countries and dropping in more-developed countries.
Answer the following statement true (T) or false (F)
False
TFRs have fallen world-wide since the 1950s in all countries (see Figure 2.9)
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The region in which populations interact with each other and with the physical environment is called?
A. an entity. B. an ecosystem. C. a biosystem. D. a community. E. a biosphere.
On Earth between 30° and 60° north latitude, winds flow from the ________ as they flow out of the ________ pressure zone toward the ________ pressure zone
A) northeast; subtropical high; subpolar low B) west-southwest; subtropical high; subpolar low C) northeast; subpolar low; subtropical high D) west-southwest; subpolar low; subtropical high
Which of the following orderings (going from highest to lowest) is correct with respect to the percentage of U.S. GDP?
A) (1)Government; (2)Consumer purchases; (3)Investment; (4)Foreign trade B) (1)Investment; (2)Government; (3)Consumer purchases; (4)Foreign trade C) (1)Investment; (2)Consumer purchases; (3)Government; (4)Foreign trade D) (1)Consumer purchases; (2)Investment; (3)Foreign trade; (4)Government E) (1)Government; (2)Consumer purchases; (3)Foreign trade; (4)Investment
A habitat generalist is a species ________
A) that has highly specialized prey B) that cannot survive in a city or suburban area C) that relies on rural settings for survival D) that can take advantage of habitats that may have no counterpart in nature E) with a specific niche