首页
登录
职称英语
Certainly no creature in the sea is odder than the common sea cucumber. All
Certainly no creature in the sea is odder than the common sea cucumber. All
游客
2024-10-17
24
管理
问题
Certainly no creature in the sea is odder than the common sea cucumber. All living creatures, especially human beings, have their peculiarities, but everything about the little sea cucumber seems unusual. What else can be said about it is: a bizarre animal that, among other eccentricities, eats mud, feeds almost continuously day and night but can live without eating for long periods, and can be poisonous but is considered supremely edible by gourmets.
For some fifty million years, despite all its eccentricities, the sea cucumber has subsisted on its diet of mud. It is adaptable enough to live attached to rocks by its tube feet, under rocks in shallow water, or on the surface of mud flats.
Common in cool water on both Atlantic and Pacific shores, it has the ability to suck up mud or sand and digest whatever nutrients are present.
Sea cucumbers come in a variety of colors, ranging from black to reddish-brown to sand-color and white. One form even has vivid purple tentacles. Usually the creatures are cucumber-shaped hence their name and because they are typically rock inhabitants, this shape, combined with flexibility, enables them to squeeze into crevices where they are safe from predators and ocean currents.
Although they have voracious appetites, eating day and night, sea cucumbers have the capacity to become motionless and live at a low metabolic rate — feeding sparingly or not at all for long periods, so that the marine organisms that provide their food have a chance to multiply. If it were not for this faculty, they would devour all the food available in short time and would probably starve themselves out of existence.
But the most spectacular thing about the sea cucumber is the way it defends itself. Its major enemies are fish and crabs. When attacked, it squirts all its internal organs into the water. It also casts off attached structures such as tentacles. The sea cucumber will eviscerate and regenerate itself when it is attacked or even touched; it will do the same if the surrounding water temperature is too high or if the water becomes too polluted. [br] Of all the features of the sea cucumber, which of the following seems to fascinate the author most?
选项
A、What it does when threatened.
B、Where it lives.
C、How it hides from predators.
D、What it eats.
答案
A
解析
定位于最后一段首句“但是有关海参给人留下的最深刻印象是它的防卫方式”,由此可知答案为[A]。
转载请注明原文地址:https://tihaiku.com/zcyy/3805277.html
相关试题推荐
Inrecentyears,second-handtransactionhasbeenquitecommon.Inthemarke
Certainlynocreatureintheseaisodderthanthecommonseacucumber.All
Certainlynocreatureintheseaisodderthanthecommonseacucumber.All
Certainlynocreatureintheseaisodderthanthecommonseacucumber.All
Certainlynocreatureintheseaisodderthanthecommonseacucumber.All
Whyaredivorcessocommonatpresent?[br][originaltext]Agoodmarriage
Acommonassumptionabouttheprivatesectorofeducationisthatitcaters
Acommonassumptionabouttheprivatesectorofeducationisthatitcaters
Acommonassumptionabouttheprivatesectorofeducationisthatitcaters
Acommonassumptionabouttheprivatesectorofeducationisthatitcaters
随机试题
InTheBirthOrderBook:WhyYouAretheWayYouAre(2004),Dr.KevinLeman
READINGPASSAGE3Youshouldspendabout20minutesonQuestions27-40,whichar
下列关于法律规则的说法,哪一项是正确的?()A.法律规则由假定条件、行为模式两
阿曲库铵的降解方式为:A.肝脏代谢 B.肾脏代谢 C.血浆胆碱酯酶水解 D
下列选项中不属于医学道德特点的是()。A.实践性 B.稳定性 C.连续性
强心苷治疗心衰的原发作用是()A.正性肌力作用 B.使已扩大的心室容量缩
除证券公司、证券投资咨询机构以外,其他财务顾问机构从事上市公司并购重组财务顾问业
“中介性是房地产经纪服务的市场立场”,这意味着()。(2007年真题)A.只
A.妊娠6-8周 B.妊娠10周 C.妊娠20周 D.妊娠28司 E.妊
下列关于监理工程师对承包单位施工进度计划的审查或批准的说法,正确的有( )。A
最新回复
(
0
)