TOEFL Sample essay : integrated essay from TPO 15

The lecturer argues against the three measures mentioned in the reading passage to reduce the population of the cane toad, a species introduced to the Australian continent.

The lecturer argues that the first measure, a national fence, would not prevent the flow of streams or rivers and, therefore, would allow young toads or toad eggs to travel to the other side of the fence. The reading passage, however, argues that such a fence would effectively cut off the Route that animals use to establish colonies and expand in population.

Regarding the second measure, recruiting a large group of vo...