解析 C [试题分析] 这是一道文章细节题。[详细解答] 由文章第三段“Altogether,the US population rose in the 1970s by 23.2 million people-numerically the third largest growth ever recorded in a single decade”可知,答案C是正确的。反馈 收藏 ...
The purpose of this study was to estimate the current prevalence and distribution of hypertension and to determine the status of hypertension awareness, treatment, and control in the US adult population. The study used a cross-sectional survey of the civilian, noninstitutionalized population of the ...
Interest has recently emerged in increases in suicide among US teenagers. Nonetheless suicide remains one of the major causes of death among the fastest growing components of the US population--the elderly. We examine the trends in US age-specific suicide rates for the period 1962 to 1981 for ...
US percent population breakdown for each of five age groups from under 18 years through 65 years and older in 2000Centre, GuinnessLane, Taylors
R. Bence (1990) Population regulation, convergence, and cannibalism inNotonecta (Hemiptera).Ecology 71: 68–82. Article Google Scholar Osawa, N. (1989) Sibling and non-sibling cannibalism by larvae of a lady beetleHarmonia axyridis PALLAS (Coleoptera: Coccinellidae) in the field.Res. Popul. ...
The world’s population continues to grow. There are about five billion of us on earth now. It could reach six billion in 10 years’ time, and eleven billion in another 75 years. Experts have long been concerned about such growth. Where will we find the food, water, jobs, houses, scho...
Separating the confounding effects of long-term population history from gene flow can be difficult. Here, we address the question of what inferences about gene flow can be made from mitochondrial sequence data in three closely related species of mosquitoes, species A, C, and D, from southeast ...
A Washington state woman has been ordered held without bail in connection with the death of a U.S. Border Patrol agent in Vermont Associated PressJan. 30, 2025 Inmate Dragged Backward Across Cell Floor by a Rope Sues Washington State Sheriff's Office ...
The breeding season is of paramount importance to the population size of waterfowl. All of the increase in population size occurs, as does much of the mortality during that season, which is often but a fraction of the entire year. Population of a species is indicative of the environmental fac...
aIn addition to statistics on the total population, the 1980 census has given us a great deal of information about recent changes in American life. 除对总人口的统计之外, 1980年人口调查提供了我们关于最近变化的很多信息在美国生活上。[translate]...