问题 选择题

在一个狒狒群体中,最占优势的个体(  )

A.往往最后享用食物

B.是一个雄性个体和一个雌性个体

C.是一个强壮的雄性个体

D.往往最后拥有配偶

答案

在营群居生物的动物中有森严的等级制度,如狒狒营社会行为,在各个组成成员之间,根据个体大小、力量强弱、健康状况和凶猛程度,排成等级次序,其中只有一个雄性个体最占优势,其为社群中的首领,优先享有食物和配偶,优先选择筑巢场地,其他成员对它表示顺从,负责指挥整个社群的行动,并且和其他雄狒狒共同保卫这个群体.

故选:C

单项选择题

Almost every day the media discovers an African American community fighting some form of environmental threat from land fills, garbage dumps, petrochemical plants, refineries, bus depots, and the list goes on. For years, residents watched helplessly as their communities became dumping grounds.
But citizens didn’t remain silent for long. Local activists have been organizing under the mantie of environmental justice since as far back as 1968. More than three decades ago, the concept of environmental justice had not registered on the radar screens of many environmental or civil rights groups. But environmental justice fits squarely under the civil rights umbrella. It should not be forgotten that Dr. Martin Luther King Jr. went to Memphis on an environmental and economic justice mission in 1968, seeking support for striking garbage workers who were underpaid and whose basic duties exposed them to environmentally hazardous conditions.
In 1979, a landmark environmental discrimination lawsuit filed in Houston, followed by similar litigation efforts in the 1980s, rallied activists to stand up to corporations and demand government intervention.
In 1991, a new breed of environmental activists gathered in Washington, D.C. , to bring national attention to pollution problems threatening low-income and minority communities. Leaders introduced the concept of environmental justice, protesting that Black, poor and working-class communities often received less environmental protection than White or more affluent communities. The first National People of Color Environmental Leadership Summit effectively broadened what "the environment" was understood to mean. It expanded the definition to include where we live, work, play, worship and go to school, as well as the physical and natural world. In the process, the environmental justice movement changed the way environmentalism is practiced in the United States and, ultimately, worldwide.
Because many issues identified at the inaugural summit remain unaddressed, the second National People of Color Environmental Leadership Summit was convened in Washington, D.C. , this past October. The second summit was planned for 500 delegates ; but more than 1,400 people attended the four-day gathering.
"We are pleased that the Summit Ⅱ was able to attract a record number of grassroots activists, academicians, students, researchers, planners, policy analysts and government officials. We proved to the world that our movement is alive and well, and growing," says Beverly Wright, chair of the summit. The meeting produced two dozen policy papers that show powerful environmental and health disparities between people of color and Whites.

With respect to getting environmental justice, Summit Ⅱ was aimed for ______.

A.showing the achieved success

B.attracting national attention

C.identifying relevant issues

D.finding solutions to the problems

单项选择题 案例分析题