▶ Your Answer :
In the reading passage, there is ample support for the author’s claim that the crest, Lambeosaurus’s specific physical feature, are used for several purposes. However, the professor in the lecture gives several reasons as a rebuttal to the author’s point. First, the professor contends that the fact that crests are used to attract the opposite sex is very problematic. The Lambeosaurus seeks mates through sound not appearance. For example. the aligator sounds low and crowing noise when breeding. Likewise. The Lambeosarus use the crests for similar purpose. This casts doubt on the reading passage’s claim that the crests are used for seeking makes by enlarging the feature. Next, the professor insists that It is much unlikely that the crests are used for combating. According to a analysis, unlike a certain type of dinosaur that have more solid and denser crests, The Lambeosaurus have hollow crests that is very fragile to do battle. Moreover, they have the rests on their backwards, so it is not useful to fight and defend from other predators. This counters the reading passage’s assertion that the crests are used to fight other massive animals by protecting the head like helmet. Finally, the professor argues that the crests are not used for supply them air. Because the lammeosaurus are massive animals, they need a lot of oxygen. However, being supplied from the crests is not enough to satisfy their deep breath and even it last just few seconds. This refutes the reading passage’s suggestion that the Lamdeosaurus uses the crests to store a large amount of air by lengthen time to submerge in the water when they eats marine plants. |