Although ice crystals form under the skin when frogs hibernate in the winter, a high concentration ofglucose occurring naturally in the frog's organs prevents the animal from freezing. Even when a deep freeze causes the frog's heart to stop beating and the frog to stop breathing, the body w...
No, the gills of juvenile amphibians do not have bones. In fact, juvenile amphibians do not have any bones at all. The skull of tadpoles and other...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tou...
sound reflections are used to create pictures of bones and organs(器官). These pictures can help doctors find problems. 根据材料内容,从下面五个选项中选出能填入文中空缺处的最佳选项,使文 章意思通顺、内容完整。 A. Echoes have medical uses as well. B. Some humans can do something similar. C...
A frog tongue is both spring loaded and sticky, so bugs beware. Vultures are immune to bacteria due to their stomach acid, and a trapdoor spider can live for 43 years. S1.E22 ∙ Cat Speech Is a cats meow really trying to communicate to humans? Some of the world's cleverest monkeys...
One frog has two eyes and four legs. How many eyes and legs do eight frogs have? A. Sixteen eyes and thirty two legs. B. Sixteen eye and thirty-two legs. C. Sixteen eyes and thirty-two legs. D. Thirty-two eyes and sixteen legs. 相关知识点: 试题来源: 解析 C2 ×8=16,4 ×...
The tree frog is hard to find. This frog can change color. On green leaves, it stays green. On a brown branch, it turns brown. Some tree frogs can change from green to gold or blue. Tree frogs have legs and wide feet. They have sticky pads at the ends of thei...
(4)How many legs does a frog have?(5)Do you like the fish? 试题答案 【答案】(1)B(2)D(3)A(4)E(5)C【解析】(1)句意:他长什么样?选项B符合题意,意思是:又高又胖。所以答案是:B。(2)句意:他几岁了?选项D符合题意,意思是:八岁。所以答案是:D。(3)句意:你的哥哥在哪儿?选项A符合...
They told the villagers there were some people elsewhere who liked to eat frog’s legs. However, they did not have enough frogs of their own, and so they wanted to buy frogs from other places.This seemed like money for nothing. There were millions of frogs in the fields around, and ...
1.A frog has two eres,one mouth and four legs.Do you know?Two frogs have___,___and___.threefrogs have___,___and___.2.哪种说法对?请用"Yes"和"No"表示( )The eath move round(围绕)the sun.( )The sun moves round the
智力测试.1、A frog has two eyes,one mouth and four legs.Do you know?Two frogs have ___,___and___.Three frogs have ___,___and___.2、My grandmother is very old.She is 84.She is four times as old as I am.H