TPO47 task1

the main idea of both the passage and lecture is about the possibility of the flying ability of a large ancient group of reptiles named Pteroasurs that lived juxtapose with dinosaurs and have wingspan. In this respect, the reading passage provides three major ideas. However, the lecture finds all the idea implausible and present some evidence to refute them.
First, the author argues that Pterosaurs likewise the ancient reptile was cold-blooded animals that were not capable of power flight since they have low-pace metabolism giving rise to provide inadequate energy for flying, On the contrary, the professor highlights the fact that recent fossil records have revealed that the Pterosaurs had dense hair fair covered body like warm-blooded animals. This feature which has seen in warm-blooded animal, allows them to keep body temperature high enough in extremely cold external temperature in order to produce sufficient energy that their metabolism needed for powered flight.
Second, the reading holds the standpoint that Pterosaurs' large body size confined their ability to being float in the sky owing to the reason that their weight was beyond their tolerability for maintaining in the air by flapping wings. conversely, the lecture dismisses the point due to the fact that the Pterosaurs unique anatomic evidence indicated that they had lightweight. Indeed, their bone is more prose with a plethora of hollow in comparison with other animals' solid bones which reduces their body weight significantly. Accordingly, despite their large dimension, low body weight provides the opportunity of keeping airborne for a long time via flapping wings.
Finally, the passage asserts that on the ground of weak and small leg muscle, Pterosaurs were unable to take off from the surface and launch into the air. In contrast, there were differences in harnessing limbs between other animals including birds and Pterosaurs. To delineate, birds take off from the ground with two legs, however, Pterosaurs utilized all 4 limbs in order to push up the ground and by doing so, they were capable of running fast and jump high to fly.