首页
登录
职称英语
Since life began eons ago, thousands of creatures have come and gone. Some,
Since life began eons ago, thousands of creatures have come and gone. Some,
游客
2024-01-02
42
管理
问题
Since life began eons ago, thousands of creatures have come and gone. Some, such as the dinosaurs, became extinct due to naturally changing ecologic conditions. More recent threats to life forms are humans and their activities. Man has drained marshes, burned prairies, dammed and diverted rivers. Some of the more recent casualties of man’s expansion have been the dodo, great auk, passenger pigeon, Irish elk, and Steller’s sea cow. Sadly, we can no longer attribute the increasing decline in our wild animals and plant species to "natural" processes. Many species are dying out because of exploitation, habitat alteration or destruction, pollution, or the introduction of new species of plants and animals to an area. As mandated by Congress, protecting endangered species, and restoring them to the point where their existence is no longer jeopardized, is the primary objective of the U.S. Fish and Wildlife Service’s Endangered Species Program. [br] Which of the following has become extinct due to man’s destruction ?
选项
A、African elephant.
B、Irish elk.
C、Giant panda.
D、White Bengal.
答案
B
解析
见文中第五句:Some of the more recent casualties of man’s expansion have been the dodo;great auk,passenger pigeon,Irish elk.and Steller’s sea cow.近期人类扩张所造成的一些受害者有:渡渡鸟、大海雀、候鸽、爱尔兰麋鹿及Steller’s海象。本题所问:“由于人类破坏已经灭绝的物种是……”,应为“爱尔兰麇鹿”。
转载请注明原文地址:https://tihaiku.com/zcyy/3326339.html
相关试题推荐
_____thecommercialsewingmachinewasintroduced,thousandsofwomenfoundjobs
Thousandsofyearsago,inNorthAmerica’spast,allofitsmegafauna—largemamm
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Alllivingcreaturespassoninheritedtraitsfromonegenerationtoother.A、the
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
随机试题
Suchan______actofhostilitycanonlyleadtowar.A、overtB、episodicC、ampleD、
Thefirstmoderndigitalcomputersweredevelopedinthe1940sformilitary
Youmustletmehavetheannualreportwithout______byteno’clocktomorrowmo
Heenjoyed(visit)______hisfriendsonweekends.visiting他周末喜欢去拜访他的朋友.本题考查动名词的用
以下属于啮合型带传动的是()。A.平带传动 B.V带传动 C.多楔带传动
超声波检测到GIS有异常信号但不能完全判定时,可根据GIS设备的运行工况,缩短检
关于提单的证据效力,我国《海商法》规定,在将提单转让给善意的第三人之后,提单的记
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
标线应暂时停止喷涂施工的天气状况有( )。A.夜间 B.雨天 C.风天
用于区域经济与宏观经济影响分析的经济结构指标是指()。A.就业结构指标
最新回复
(
0
)