▶ Your Answer :
The cane toad colony in Australia has been
raised as a serious problem because this exotic species threats some native
animals has been raised. To solve this problem, the writer asserts three
possible solutions: using national fence, allowing volunteers to capture and
destroy the toads, developing a virus to control the populations. However, the
lecturer counters the writer's arguments.
To begin with, the lecture claims that
national fence would not be effective as we expect, because young cane toads
and eggs of cane toads will still flow into the ocean by passing cracks of
fences. Furthermore, fences could be a matter of water pollution. In contrast
to these worries, the writer insists that national fence will succeed to
destroy the cane toad colony just like the early example of preventing the
spread of rabbits.
Secondly, the lecturer casts doubt on
allowing volunteers to capture the toads. This is because most of the
volunteers will untrained people. Untrained people cannot distinct between cane
toads and national frogs, especially when the two species are young. This might
lead native frog to be in a danger. This goes against the reading passage's
idea: volunteering campaign to catch the cane toad will be one of the easiest
ways to destroy the species.
Lastly, the lecturer explains that
spreading virus to control the cane toad is not a good idea because it can
bring terrible consequences, like threatening nature habitats. According to the
lecturer, virus would finally spread into South America, the native habitat of the
cane toad species, will devastate the ecosystem. This rebuffs the reading
passage's argument that developing a disease causing virus can stop the
spreading of cane toads in Australia by blocking maturing or reproducing the
species. |