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
2025-03-28
23
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 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-colored and nearly 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 their 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 quiescent 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 a 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 if it is attacked or even touched: it will do the same if the surrounding water temperature is too high or the water becomes too polluted. [br] Which of the following would NOT cause a sea cucumber to release its internal organs into the water?
选项
A、A touch.
B、Food.
C、Unusually warm water.
D、Pollution.
答案
B
解析
题目问:下列哪项不会引起海参释放其内脏?最后一段The sea cucumber will eviscerate and regenerate itself if it is attacked or even touched:it will do the same if the surrounding water temperature is too high or the water becomes too polluted.通过这句话可知,如果受到攻击,或即便是被碰到,海参会吐出内脏。如果周围的水温过高或受到污染,它也会这样做。据此判断,应选择B。
转载请注明原文地址:https://tihaiku.com/zcyy/4016791.html
相关试题推荐
Certainlynocreatureintheseaisodderthanthecommonseacucumber.All
Certainlynocreatureintheseaisodderthanthecommonseacucumber.All
Whatdotheextraordinarilysuccessfulcompanieshaveincommon?Tofindout
Whatdotheextraordinarilysuccessfulcompanieshaveincommon?Tofindout
Withitscommoninterestinlawbreakingbutitsimmenserangeofsubject-mat
Withitscommoninterestinlawbreakingbutitsimmenserangeofsubject-mat
Withitscommoninterestinlawbreakingbutitsimmenserangeofsubject-mat
Withitscommoninterestinlawbreakingbutitsimmenserangeofsubject-mat
Onlyahandfulofcreaturesonearthcarrythedreadtitle"man-eater".The
Onlyahandfulofcreaturesonearthcarrythedreadtitle"man-eater".The
随机试题
技术分析的主要理论有()。A、道氏理论B、艾略特波浪理论C、江恩理论D、循环周期理论A,B,C,D技术分析的主要理论有道氏理论、艾略特波浪理论
[originaltext]ImetSusanatadanceaboutsixmonthsago.Wegetalongwel
Thereare4.9millionbusinessesintheUK,99%of______aresmallbusinesses.A、w
在过去10年中,A基金平均汇回报12.8%,β为0.9;基金平均回报17.9
预算执行是预算计划付诸实施的过程。根据我国《预算法》的规定,各级预算由本级政府组
八项质量管理原则包括()。 A.以顾客为关注焦点 B.基于风险预防的管理
下列各项中,属于股票投资优点的有( )。A.投资收益高 B.能降低购买力的损失
“两化融合”指的是()的融合。A:社会化 B:工业化 C:信息化 D:产业
在个人所得税的税率中,综合所得适用的税率形式为()。A.超额累进税率 B
根据社会保险法律制度的规定,下列情形中,视同工伤的有()。A.在工作时间和
最新回复
(
0
)