71.   At the same time, more prescriptions are being written, because the population is aging and older people take more drugs.

72.   Because Hispanic populations are the product of different racial influences, for instance, racial self-definitions go beyond black and white.

73.   Because our population is so mobile, many people are convinced that the way it was done back home is the way it is done in their new home.

74.   Because Dungeness like estuaries, most scientists agree that local populations are highly dependent on the biological integrity of San Francisco Bay.

75.   Because the population is aging rapidly, soon a greater number of people will become net spenders, rather than savers.

76.   Because the population is so small and there are only three pods within it, females are severely limited in the numbers of possible mates.

77.   Besides a looming food shortage, the growing world population also is consuming natural resources at phenomenal rates.

78.   Because young people are leaving, the population is increasingly elderly.

79.   Border health officials said the problem is magnified in Mexico, where canine populations are greater and vaccination efforts are fewer.

80.   Blue crab populations are healthy and closely monitored, they say.