根据第一段A jellyfish has no head,brain,heart,eyes,or ears.(水母没有头、脑、心、眼睛或耳朵);第三段The digestive system is very simple.(消化系统非常简单)可知,水母的身体里有一个简单的消化系统,故选C.(2)C.细节理解题。根据第三段We can easily see their ‘inside' because water takes up ...
A jellyfish has no head, brain, heart, eyes, or ears. It has nobones, either. I is 95% water! Scientists say there may be 2,000 kinds of jellyfish.Where do they live?Jellyfish live in the oceans. They live in groups because the currents(洋流) keep themtogether. Some live very ...
Jellyfish have no brain heart bones or eyes,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360、招商银行、工商银行等数万家
根据第一段中的Ajellyfish has no head, brain, heart, eyes, orears.,第三段中的 The digestive system is verysimple以及倒数第二段第一句可知答案。6.C细节理解题。根据第三段的最后一句We can easily see their “inside” becausewater takes up the major part of theirbodies, the percentage of ...
One interesting fact about jellyfish is that they have no brain or central nervous system. Instead, they have a nerve net that allows them to sense their environment and respond to stimuli. This makes them unique among animals and has led scientists to study them to better understand how nerv...
Although they have no central brain, the jellyfish do have a nervous system (神经系统). It’s made of four main parts that look like hanging strings (绳子). Each part has about 1,000 neurons (神经元) and six ...
The study has proven that a brain is not necessary for sleep. Cassiopea lives upside down on the sea floor and has no central nervous system. The findings also indicated that sleep is an ancient behavior that stayed unchanged after years of evolution, since Cassiopea is very low on the anima...
They have no head, brain, heart, eyes, have a kind of body,called a"bell".The bell is the big round part that looks like jelly.Inside it are nerves,which are all jellyfish need to move to sense light. Another important part is the tentacles,the long strings hanging from the bell....
4, The jellyfish is basically made of water and nerves. Jellyfish's body is made up of 85-98 percent water. It has no organ, no brain, and almost nothing but a nervous system, which allows it to perceive basic senses like smell and touch. Besides, it has only one opening to eat,...
Mane's jellyfish has a vast tangle of tentacles that sweep the oceans like fishing nets, spanning an area the size of a tennis court. No wonder these Lion Mane's jellies often reach half a tonne in weight! In some jellyfish, the oral arms are highly branched feathery structures, whil...