▶ Your Answer :
Both the reading
and lecture deal with the topic of the gulf sturgeon. The main idea of the
reading is that reasons of fish’s jumping can be fully explained by three
theories. However, the lecture argues against the theories presented in the
reading.
First of all,
the professor insists that jumping is not caused by catching prey above the
water’s surface. To be specific, the professor says that we have been watched other
jumping fishes when the weather was cold. Also, the feeding habit is difference
between the gulf sturgeon and others. This casts doubt on the reading passage’s
claim that catching prey causes the fish jump.
Secondly, the
professor asserts that there are no indicates that jumping affects the sturgeon
to dislodge parasites. Additionally, the professor mentions that sturgeon does
not has large external parasites, farmed sturgeon only has it. But farmed
sturgeon does not jump. This contradicts the reading passage’s argument that
dislodging parasites lead to jump.
Finally, the
lecturer refutes that there is no evidence that jumping is triggered by
invaders. To be specific, the professor contends that sturgeon was jumping when
the boat is disappeared. This opposes the reading passage, which mention is
that jumping is caused by invaders of their responsible area. |