An unusual feature of the Russian population compared to other regions is that
A. birth rates are very high
B. birth rates are rising
C. death rates are rising after having fallen
D. population is rising rapidly
C. death rates are rising after having fallen
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Most marine organisms have an internal temperature very close to that of their surroundings, they are known as endothermic organisms
Indicate whether the statement is true or false
A habitat generalist is a species________
A) that has highly specialized prey B) that relies on rural settings for survival C) that cannot survive in a city or suburban area D) with a specific niche E) that can take advantage of habitats that may have no counterpart in nature
One source of oxygen isotope measurements used for climate reconstruction come from:
A) packrat middens. B) air pollution. C) cores from old trees. D) sea floor sediments.
Which of the following factors drives TFR down?
A) social and economic security B) history and tradition C) high infant mortality D) rural lifestyle E) poverty