▶ Your Answer :
In the reading passage, there is ample
support that dinosaurs were endotherms. However, the professor in the lecture
gives several reasons as a rebuttal to the writer’s point.
Initially, the speaker contends
that the polar dinosaurs would live in warmer areas in the polar region. This
can be supported by the fact that the polar regions in the past were enough to
live for dinosaurs that are not endotherms. This counters the reading passage’s
claim that dinosaurs were endotherms since they lived in the polar regions
which only animals are able to live because of the abilities to sustain a
temperature.
More importantly, the lecturer
insists that the position of legs was unnecessary for dinosaurs’ lives. Moreover,
they had big bodies so they did not need to run. This casts doubt on the
reading passage’s suggestion that its legs enables them to maintain its
physical activity, as its’ legs are placed under its body.
Lastly, the professor in the
lecturer argues that dinosaurs stopped growing during cooler periods, even
though they do have Haversian canals. Changing their body conditions like the
growth appearance is one characteristic of reptiles that are not endotherms.
Therefore, because of this thickening of bones, they were not endotherms. This
refutes the reading passage’s assertion that dinosaurs have Haversian canals
which only exist for endotherms.
In conclusion, the speaker
disagrees with the writer’s opinion by utilizing all counterparts. |