Shark skin may look smooth,but it’s actually rough. Sharks are covered in scales made from the same material as their teeth. Viewed up close, the scales actually look like tiny teeth. These scales protect the shark and help to keep it clean. They are also flexible and can turn or bend...
According to th e last paragraph, th e paddle with th e toothy skin A.was ten times smaller than th e real one B.had an increas e of over 5.9% in swimming speed C.was mor e fleribl e than th e on e with smooth skin D.used less energy compared with th e smooth on e over ...
And while dolphins have smooth, hairless skin, sharks are covered in rough, tooth-like scales. Then there’s the matter of the tail. Dolphin tails are horizontal and move up and down, which is typical for mammals. Shark tails, on the other hand, are vertical and move side to side, ...
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A shark has skin that might look smooth But actually is rough. If you rub that scaly skin You’ll be sorry, sure enough. A shark has jaws that open wide With lots of teeth to spare. So when it breaks a tooth or two It doesn’t really care. A shark is not a welcome sight To ...
sharks at MBL along with their close relatives called little skates. Unlike most fish species that have relatively smooth skin protected by a thick, slimy layer of mucus, sharks have rough skin that feels like sandpaper. It wasn’t obvious whether this skin had a protective mucus layer at ...
Tony caught on. “So one side can be smooth, and the other rocky. Come on, you guys, let’s go finish!” It was the show time.___ 1. Did the students agree with each other at first? ___ 2. Who wrote the student’s diary? ___ 3. What could the students learn about workin...
This was my personal least favorite attachment, mostly because again, not so much a fan of myhair straight. If you're not really looking for a ton of volume, and want smooth sleek hair more than anything else, the paddle brush will be your best friend. ...
The SPEEDO brand has been circulating recently - as a warm-up and tribute to the 2012 London Olympic Games, the "shark skin" bathing suit that the vast majority of swimming fans eagerly look forward to for the first time is also the only time in history that it has been on sale in th...
Which ocean animal is known for its round shape and spiny skin? A. Starfish B. Shark C. Dolphin D. Whale 相关知识点: 试题来源: 解析 A。解析:鲨鱼(Shark)身体呈流线型且皮肤光滑;海豚(Dolphin)身体光滑没有刺;鲸鱼(Whale)身体庞大光滑;海星(Starfish)以圆形的形状和多刺的皮肤而闻名。