The lecture completely refutes the passage. It is said inthe lecture that the dinosaurs are not endotherm. This contradicts the pointdemonstrated in the passage that dinosaurs are endotherm.
First, dinosaur fossils have been discovered in PolarRegions cannot prove dinosaurs are endothermic animal. The professor claimsthat the Polar Regions in the early years can be very warm. In the cold periods, the dinosaurs canmigrate to warm place or hibernate. This is very different from the passagesays that only animal maintain body temperature well can be active in such coldclimate.
Second, the leg underneath the body may used to support moreweight of the body. Because many dinosaurs are very larger size, they need tosupport the weight of their body. On the contrary, the passage contends that itis the connection between endotherm and the position and movement of legs.
Third, dinosaurs have growth rings. The professor points outthat it can prove dinosaurs may stop growth during the cold periods and it isthe character of reptile. The endotherm continues to grow during the coldperiods. However, the passage states that the presence of haversian canals inbone is a strong indicator that the animal is an endotherm.
In a word, the viewpoints asserted in the lecture aretotally different from what the passage indicates.
The lecture completely refutes the passage. It is said inthe lecture that the dinosaurs are not endotherm. This contradicts the pointdemonstrated in the passage that dinosaurs are endotherm.& l" K3 z, c0 S$ M1 {3 c# L
First, dinosaur fossils have been discovered in PolarRegions cannot prove dinosaurs are endothermic animal. The professor claims that the Polar Regions in the early years can be very warm. In the cold periods, the dinosaurs can migrate to warm place or hibernate. This is very different from the passage says that only animal which maintain body temperature well can be active in such coldclimate.4 h! r: X v0 ^; E
Second, the leg underneath the body may be used to support more weight of the body. Because many dinosaurs are very larger size, they need to support the weight of their body. On the contrary, the passage contends that it(指什么?) is the connection between endotherm and the position and movement of legs.
Third, dinosaurs have growth rings. The professor points out that it can prove dinosaurs may stop growth during the cold periods and it is the character of reptile. The endotherm continues to grow during the cold periods. However, the passage states that the presence of haversian canals inbone is a strong indicator that the animal is an endotherm.
In a word, the viewpoints asserted in the lecture are totally different from what the passage indicates.