We can make a guess.New kinds of animals came to the earth.Some had big brains and were fast and strong.They could kill dinosaurs.Some ate dinosaur eggs,too. There may be other reasons that we do not know about.Each year,people will find some dinosaur footprints(脚印) a...
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百度试题 结果1 题目What did dinosaurs live on? A. Plants or meat. B. Other animals. C. Birds. 相关知识点: 试题来源: 解析 A 反馈 收藏
A. Dinosaurs were small animals. B. Dinosaurs lived in the sea. C. Dinosaurs were diverse and lived on land. D. Dinosaurs were all herbivores. 相关知识点: 试题来源: 解析 C。选项 A 错误,恐龙有大有小,并非都是小动物。选项 B 错误,恐龙主要生活在陆地上,不是海里。选项 D 错误,恐龙有食草...
1.Many people think the dinosaurs(恐龙) were the biggest animals that ever lived.They are wrong.The world's biggest animal is still living and it lives in the ocean.It is called the blue whale(鲸鱼).Blue whales can be as long as 30meters and weight as much as 1,000kilos.The largest...
Plants and some animals have a better fossil record than dinosaurs. They also give clues about climate that dinosaur fossils do not. Some marine protozoans (single-celled organisms), called foraminifera, have shells that tell the temperature of the water where the animal lived. By studying the ...
andouttosea,wheretheyareeatenbyseaanimals.Ifpeopletheneattheseanimals,itmeans thatwe?reeatingtheplasticaswell. A.Aretheybadforus? B.andnowit?stheArctic?sturn. C.soweshouldtakeactiontoprotecttheworld. D.They mix withiceintheairandfalltothe groundassnow. E.Microplasticsarepiecesofplasticsmallerthan5...
What animals are still alive from the Jurassic Period? What animals became extinct during the Jurassic Period? What life existed before the Ordovician extinction? How many dinosaurs lived in the Cretaceous Period? What era is the Triassic period in?
Sixty-five million years ago, a massive asteroid crashed into the Earth. It wiped out 70 per cent of all life, including the most successful, the dinosaurs. But what if the asteroid had missed? What would the world be like today if the dinosaurs had surv
英语翻译The dinosaurs(恐龙)once lived happily on the earth.But 65 million years ago,they suddenly died out.What happened to them?Scientists think that a change in temperature may be to blame.They have come up with lots of ideas to explain t