首页
登录
职称英语
What does the speaker say about the skin of starfish? [originaltext] Welcome t
What does the speaker say about the skin of starfish? [originaltext] Welcome t
游客
2024-10-06
8
管理
问题
What does the speaker say about the skin of starfish?
Welcome to our aquarium. As we begin our tour, the first animal we will see today is the starfish. You probably have seen pictures of the starfish, but in a few minutes you will see some live ones and learn a little about their structure. First of all, starfish are not really fish, they belong to the family of echinoderms which are spiny skinned sea animals, that is, their skin is covered with thorny bumps. Most starfish have five arm-like extensions on their bodies. And so they look like a five-pointed star. But some other kinds have as many as 40 or more arms. Starfish, like other members of the echinoderm family, have what’s called radial symmetry. All that means is that the body part of these animals are arranged around the center, kind of like spokes of a wheel around a hub. One of the special features of the starfish is that it can drop off arms as a defensive reaction, to get away from an attacker, for example. They can then grow new arms to replace the old ones.
选项
A、It consists of a protective film.
B、It is covered with scales.
C、It can be shed easily.
D、It is covered with sharp bumps.
答案
D
解析
情景事实题。根据文中“... that is, their skin is covered with thorny bumps.”可知它们的皮肤上都覆盖着一层尖锐的突起。选项D为正确答案。thorny意为“多刺的”,bump“肿块”。
转载请注明原文地址:https://tihaiku.com/zcyy/3788691.html
相关试题推荐
Wherecanpeopletakeadulteducationcourses?[br][originaltext]Millions
Wherecanpeopletakeadulteducationcourses?[br][originaltext]Millions
Wherecanpeopletakeadulteducationcourses?[originaltext]Millionsofpe
Accordingtothespeaker,yogashouldNOTbedescribedas______[br][original
Accordingtothespeaker,yogashouldNOTbedescribedas______[originaltext]
What’sthepossiblerelationshipbetweenthetwospeakers?[br][originaltext]M
What’sthepossiblerelationshipbetweenthetwospeakers?[br][originaltext]M
Whydoesthewomanfeelbettertoday?[br][originaltext]M:Whyareyouinsuch
Whydoesthewomanfeelbettertoday?[br][originaltext]M:Whyareyouinsuch
What’sthenewsabout?[originaltext]Noinstitutionswillbeallowedtosell
随机试题
GesturesI.Theuniversalusageofgesturesin
Itisnecessarythateveryone______acopyofthisbook.A、hasB、couldhaveC、will
下面关于企业债券的说法正确的是( )。 ①棚户区改造项目可发行并使用不超过项
胚胎期人体最早的造血器官是A.肝脏B.脾脏C.胸腺D.卵黄囊E.骨髓
如果一项培训内容的掌握有赖于实践,那么这项培训就适合于()。A.课堂培训 B
某一办公楼,楼长46.0m,宽12.8m,总建筑面积2860m2。地基土为杂填土
(2016年真题)费率的类型较多,主要包括()。A.担保费 B.承诺费
下列关于基金投资风险的说法中,错误的是( )。A.基金的风险是指购买基金遭受损
菌落总数的食品卫生学意义是A.食品清洁状态的标志 B.食品受到粪便污染的标志
由于有了会计分期这个会计核算的基本前提,才产生了当期与以前期间、以后期间的差别,
最新回复
(
0
)