▶ Your Answer :
The reading and the lecture both talk about
the head of a hammerhead shark. The reading says that its head shape brings several
benefits. However, the lecturer argues that the flat and wide head shape has no
obvious advantages.
Firstly, the reading states that since the
sharks’ eyes located at the end of wide shaped head, they can gain better
vision. However, the lecturer argues that the shape of head does not actually
strengthen its vision all the time. In fact, it is only helpful when the shark
sees distinct objects. And the characteristic will be a drawback because they
cannot see clearly when objects are located directly in front of it.
Secondly, in the reading, the author argues
that by using its head, it can be gain better olfactory ability. On the
contrary, the lecturer disagrees with the statement. He states that it doesn’t
help to get a better ability to smell. The hammerhead sharks smell just as well
as other sharks such as great white sharks.
Thirdly, the reading goes on to say that
the shape helps it turn quickly by cutting through the water. However, the
lecturer contradicts this statement, arguing that the given idea in the reading
is just wrong. According to videotapes, the hammerhead shark does not use it
head for stirring but their flexible backbone. |