L3
讲座
1. What is the main topic of the lecture?
The spotted predatory katydid’s adaptation to changes in its habitat
The katydid’s use of song to attract mates
The katydid’s use of mimicry to attract prey
The discovery of a new species of katydid in Australia
2. What does the professor say is the most important aspect of the female cicada’s response to the male’s song?
The response’s complexity
The response’s exact mimicry of the male’s song
The response’s correctly timed delivery
The response’s ability to attract katydids
3. What point does the professor make when she mentions big cats in South America?
Insect and mammal hunting strategies are different
Many animals use scent to attract prey.
Acoustic aggressive mimicry is more common in South America than in
Australia.
Acoustic aggressive mimicry is rare in the animal kingdom.
4. Why does the professor mention cicadas that are not native to Australia?
To show that katydids have a universal strategy for replying to cicada songs
To illustrate the cicada’s wide geographic distribution
To demonstrate the effects of habitat on cicada songs
To point out a flaw in the researchers’ experiment
5. What do researchers think is causing the songs of certain cicada species to evolve?
The evolution of their prey’s songs
Cicadas’ need to counter a predatory behavior
Cicadas’ need to identify themselves more accurately to females of their species
A change in their environment triggered by global warming
6. What does the professor imply about the researchers who studied Australian cicadas?
They used flawed research methods.
They expected a different result from an experiment they conducted.
They cannot fully explain the cicada behavior they observed.
They deserve more recognition from the scientific community than they have received.
