首页
登录
职称英语
Migratory songbirds breeding in Eurasia’s temperate forests depend on a summ
Migratory songbirds breeding in Eurasia’s temperate forests depend on a summ
游客
2024-01-10
29
管理
问题
Migratory songbirds breeding in Eurasia’s temperate forests depend on a summer flush of insects, particularly caterpillars, to feed themselves and their offspring. In some places, these caterpillars are emerging earlier in responses to rising global temperatures.
In theory, the songbird could simply push up their departure from their winter quarters to catch the earlier flush of insect prey.
If, however, the birds rely on a fixed cue such as increasing day length to begin flying north, they may be unable to adjust the timing of their migration. Precisely this disruption in the emergence of insects relative to the timing of songbird migration has been identified as the cause of a significant decline in populations of pied flycatchers in the Netherlands. [br] According to the passage, populations of insects preyed upon by pied flycatchers
选项
A、are finding less food as temperatures rise in the Eurasian forests that they inhabit
B、are endangered because of global warming
C、have recently experienced changes in the timing of their life cycles relative to the calendar
D、have recently begun inhabiting cooler climates largely unfrequented by pied flycatchers.
E、have increased significantly because of lack of predation.
答案
C
解析
文章第五句对应this disruption in the emergence of insects relative to the timing of songbird migration。根据第四句可知,the timing of songbird migration是相对于日照时间的,而日照时间与the calendar保持一致,因此选项C正确。E项根据第五句我们只能知道鸟类减少了,但是不能说虫子一定增多了。这道题的题干是According to the passage,所以文章没提及的不能选。
转载请注明原文地址:https://tihaiku.com/zcyy/3349498.html
相关试题推荐
ThekeytocontrolovertheEurasiansteppeslayinthenomad’sabilitytouset
Withatotalpopulationoflessthantwohundredandfewerbreedingfemalesthan
Speciesinterdependenceinnatureconfersmanybenefitsonthespeciesinvol
Speciesinterdependenceinnatureconfersmanybenefitsonthespeciesinvol
Speciesinterdependenceinnatureconfersmanybenefitsonthespeciesinvol
Speciesinterdependenceinnatureconfersmanybenefitsonthespeciesinvol
Itwasoncebelievedthatthebrainwasindependentofmetabolicprocesseso
Itwasoncebelievedthatthebrainwasindependentofmetabolicprocesseso
Itwasoncebelievedthatthebrainwasindependentofmetabolicprocesseso
Itwasoncebelievedthatthebrainwasindependentofmetabolicprocesseso
随机试题
Whatisitthatkeepsthedevelopingworldinanapparentstateofperpetual
AsthemerchantmanclassexpandedintheeighteenthcenturyNorth1.______.
中华民族繁衍生息在中国这块土地上,各民族相互融合,具有强大的的凝聚力,形成了崇尚统一、维护统一的价值观念。TheChinesepeoplehaveliv
用极坐标系进行计算.
带宽(频宽)的含义是指A.探头扫描的声束宽度 B.线阵探头发出超声束的宽度
具有散寒止痛、理气和中功效的药物是( ) A.肉桂 B.干姜 C.高良姜
一住店客人未付房钱即想离开旅馆去车站。旅馆服务员揪住他不让走,并打报警电话。客人
甲公司以人民币作为记账本位币,外币交易采用交易发生日的即期汇率折算,按月计算汇兑
水力发电工程验收中,()需要电网经营单位参与。A.工程截流验收 B.枢纽
医学道德评价的方式有A.内心信念 B.社会舆论 C.传统习俗 D.以上都是
最新回复
(
0
)