▶ Your Answer :
In the reading passage, there is ample support for the author’s claim that axe-shaped physical features of the Lambeosaurus served as a few roles. However, professor in the lecture gives several reasons as a rebuttal to the author’s point. First, the professor contends that the crest would not have used for seeking for mates. Most of the reptile uses behaviors or sounds to attract potential mates. For example, crocodiles make a particular noise to seek for a mate. Likewise, the Lambeosaurus also might have did similarly. This casts doubt on the reading passage’s claim that the analysis of the fossils expresses that the crest had grew and changed according to their sex and age and used the apparatus to attract female’s attention. Next, the professor insists that the crest is unlikely to used to combat against other predators. Some fossils indicated that the physical feature was located in their backs. So they had a difficulty to manage the feature when they fought. Moreover, unlike another specific dinosaur that had a solid and dense feature, The crest of Lambeosaurus was not strong enough to protect and attack other creatures. This counters the reading passage’s assertion that the crest would have served as a protective device and weapon. Finally, the professor argues that It is hard to believe that the crest were used to supply air when the head of the Lambeosaurus were in the water. Actually, the dinosaur were so big that they needed the vast amount of the air. However, the crest were too small relatively. So crest were not useful to transmit the enough air. This refutes the reading passage’s suggestion that when the Lambeosaurus ate the aquatic plants, they could store and offer air to them. Also, the crest were hollow passage that linked to airways and lungs |