首页
登录
职称英语
[originaltext] Hundreds of species of marine life manage to survive even in
[originaltext] Hundreds of species of marine life manage to survive even in
游客
2023-09-03
62
管理
问题
Hundreds of species of marine life manage to survive even in the darkest depths of the ocean. These tenants of the sea have evolved some extremely ingenious devices for locating their food and enemies.
Where the light is very dim, some of these deepwater species have developed enormous eyes with almost telescopic lenses, very much like those of owls. Others, especially the fish that survive where there is no light at all, are quite blind but have developed long feelers that enable them to identify and collect stray bits of food that come within a considerable radius of them.
Some inhabitants of the sea supply their own light. They have built-in torches that they can switch on and off, depending on whether they are pursuing or being pursued. Some have regular lamps, spots of steady light, which spread a faint glow through the water around them. One deepwater squid (鱿鱼) can spray a luminous fluid that lights up its immediate vicinity, a neat variation on the ink ejected by its cousins nearer the surface to becloud and darken the water. It is supposed that about half of the varieties of fish living in the dark depths of the ocean have some power of illumination.
选项
A、Identifying and collecting food.
B、Protecting themselves.
C、Eating food.
D、Fighting against the enemies.
答案
A
解析
事实细节题 有些鱼类由于视力弱,它们就依靠触须来辨别和获取食物。
转载请注明原文地址:https://www.tihaiku.com/zcyy/2982939.html
相关试题推荐
[originaltext]Blamingcreditcardsforyoungadults’moneyabuseispopular
[originaltext]Blamingcreditcardsforyoungadults’moneyabuseispopular
[originaltext]AmericanvisitorstoEasternAsiaareoftensurprisedandpuz
[originaltext]W:I’mtryingtoloseweightbyrunning,butalltheexerciseis
[originaltext]W:I’mtryingtoloseweightbyrunning,butalltheexerciseis
[originaltext]W:Um,I’vebeenrackingmybrainsalldaytryingtofigureoutw
[originaltext]W:Um,I’vebeenrackingmybrainsalldaytryingtofigureoutw
[originaltext]W:Um,I’vebeenrackingmybrainsalldaytryingtofigureoutw
[originaltext]W:CouncilorManion,whatdoyouthinkoftheincreasinglyheavy
[originaltext]W:CouncilorManion,whatdoyouthinkoftheincreasinglyheavy
随机试题
Therearefivepartiesconcernedwithacollection,thecustomer,theremitt
Thereisnoelectricityagain.Hasthe______blownthen?A、fuseB、plugC、wireD、ci
[img]2012q2/ct_eyyjsdz2011a_eyyjsdcloze_0016_20121[/img]ThisisMattDrudge
Asunflowerisasunflower.Amobilephoneisamobilephone.Butcanyou【S1】__
季节比率=同季平均数/总的季度平均数。()
IEEEE802.11i标准制定的无线网络加密协议(请作答此空)是一个基于(
沉淀反应形成的反应现象A.肉眼可见B.肉眼不可见C.必须用精密仪器测定D.必须染
肾病综合征的临床表现不包括()。A.高血压 B.高蛋白尿 C.水肿 D.
(2018年真题)下列建设工程项目费用中,属于建筑工程费的是( )。A.研究试验
某工程有3个施工过程,分为3个施工段组织流水施工。3个施工过程的流水节拍依次为3
最新回复
(
0
)