当前位置: X题卡 > 所有题目 > 题目详情

All animals must rest, but do they really sleep as we know it The answer to this question seems o...

查看本题答案

你可能感兴趣的试题

must    shall   may   can  
They see if the animals respond to light and sound  They do this by observing changes in the animals’ brain signals, breathing, heartbeat, and muscle activity  They see if the animals’ eyes are closed  They can tell this by seeing if the animals lie down or not  
They see if the animals respond to light and sound.  They do this by observing changes in the animals’ brain signals, breathing, heartbeat, and muscle activity.  They see if the animals’ eyes are closed.  They can tell this by seeing if the animals lie down or not.  
spend some time resting  close their eyes when sleeping  are good sleepers  are poor sleepers  
need to have a good sleep after they have exhausted themselves by getting rid of hunting animals  need to have a good sleep after they get tired from hunting other animals  are all mammals  almost always have a safe resting place  
such as turtles and snakes cannot close their eyes  cannot be studied with an EEC  do not sleep in the true sense of the word  do not need to rest  
such as turtles and snakes cannot close their eyes  cannot be studied with an EEC  do not sleep in the true sense of the word  do not need to rest  
spend some time resting  close their eyes when sleeping  are good sleepers  are poor sleepers  
Dolphins have highly evolved.  Mammals don’t eat plants at all.  All fishes developed from land animals.  Dolphins were once closely related to humans.  
these animals rarely need any rest  they almost always keep alert to danger  they often stay awake  their eyes are rarely closed even when they are asleep  
need to have a good sleep after they have exhausted themselves by getting rid of hunting animals  need to have a good sleep after they get tired from hunting other animals  are all mammals  almost always have a safe resting place  

热门试题

更多