B篇(限时7分钟)Evidence of a worm-like creature about the size of a grain of rice has been uncovered in South Australia, and researchers believe it is the oldest ancestor on the family tree that includes humans and most animals. The creature lived about 535 million years ago. It is conside...
根据第二段中“and several of the predators living together in the area, such as the Carcharodontosaurus, the Spinosaurus,the Abelisaur and the Deltadromeus, were as big as a Tyrannosaurus rex (T.rex) - one of the largest dinosaurs that ever lived.(还有一些共同生活在这个区域的掠食者,如卡...
But this specimen is special because it shows researchers that dinosaurs possibly suffered from ailments that are now seen in birds, Woodruff said. The most common respiratory disorder seen in birds today is a fungal disease, he said.This fossil helps researchers trace the evolutionary...
This includeseverything from worms and dinosaurs to amphibians andhumans. But for our common ancestor, they knew thatfossils of the tiny, simple creatures they imagined wouldbe nearly impossible to find because of their size andsoft body. Then, they turned to fossilized burrows,dating back to ...
were as big as aTyrannosaurus rex (T. rex)- one ofthe largest dinosaurs that ever lived可知,那里曾经生活着体型庞大而且非常危险的食肉恐龙。34.C。推理判断题。根据第二段中的several of the predators living togetherin the area, such as theCarcharodontosaurus, the Spinosaurus和第三段中的they ate ...
【题目】A review of 100 years of fossil evidence reveals that 100 million years ago part of the Sahara Desert wasarguably the riskiest place on our planet,wih a concentration of large predatory(食肉的) dinosaurs unmatched in anycomparable moderm ecosystem on land. The analysis of fossils from ...
This does not support the theory that the malformed leg was caused by a healed break. “This remarkable find shows that no matter how big or powerful some dinosaurs may seem, they were affected by many of the same diseases we see in humans and other animals today, including cancer,” ...
B . There once lived dangerous supersized dinosaurs. C . There was an underground river instead of a desert. D . The number of plant-eating dinosaurs went beyond that of predators. (3) Which of the following would Ibrahim agree with? A . Sawfish once completely dominated North America. ...
of predators outnumber those of plant-eating dinosaurs, and several of the predators living together in the area, such as the Carcharodontosaurus, the Spinosaurus,the Abelisaur and the Deltadromeus, were as big as a Tyrannosaurus rex (T.rex) - one of the largest dinosaurs that ever lived....
根据第二段中“and several of the predators living together in the area, such as the Carcharodontosaurus, the Spinosaurus,the Abelisaur and the Deltadromeus, were as big as a Tyrannosaurus rex (T.rex) - one of the largest dinosaurs that ever lived.(还有一些共同生活在这个区域的掠食者,如卡...