Like every other scientific discovery, the color-changing fur of a polar bear shocked most of world. It truly is amazing to see the lengths to which a creature adapts to increase its odds of surviving. These great white bears aren’t just ambassadors of the North, but also color-manipulat...
D难度:★★★To answer the question what color the polar bear is, youmay say it's white, but things aren't always what they seem.Take a look at polar bears. What color are they? Theyseem bright white. Polar bears live in the Arctic, where itis verycoldthere.Polar bears'coloring allows...
解析 B。解析:根据原文Their fur is not actually white but transparent. It appears white because of the way the light is scattered. 可知北极熊的毛实际上是透明的,A选项黑色错误;C选项说毛很薄与原文厚毛层不符;D选项由特殊材料制成文章未提及。
What color are polar bears, actually? If your guess is white, you might be surprised to find out you're wrong!
What makes polar bears appent white? A.Their fur's color thnt can chang e in cold weather. B Their fut that refles ts sunlight. C. Their natural whit e color. D.Th e fact that they cover themselves in snow.3. What can't w e learm about polar bears according to th e passage?
A. The polar bear likes white color B. The white fur is just for beauty C. It is an adaptation to its environment D. The polar bear can change its fur color at will 相关知识点: 试题来源: 解析 C。解析:北极熊的白色皮毛有助于它与冰雪融为一体,这是一种对环境的适应,而不是因为它喜欢...
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An astrophysicist and an eye expert teamed up to solve the mystery of how and why reindeers’ eyes switch from yellow to blue in wintertime.
Lobster blood is clear, but turns an opaque color once a lobster is boiled or cooked. However, when the blood of a lobster is exposed to oxygen, it... See full answer below. Learn more about this topic: Invertebrates | Definition, Types & Examples ...
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