L2
讲座
1. What is the main purpose of the lecture?
To analyze the aerodynamics aspects of flight
To explain how computers simulate flight
To discuss possible explanations for coordinated group flights
To determine whether birds benefit more from instinctual behavior or from learned behavior
2. What point does the professor make about birds very large flocks?
They may be better protected than birds in a flock of 100.
They may confuse themselves and be vulnerable to attacks.
Only the birds in the middle of the flock are safe from predators.
They are rarely attacked by predators.
3. Why does the professor mention the behavior of starlings above their roosting areas?
To explain how starlings determine if a roosting site will accommodate the entire flock
To illustrate behavioral pattern that provides maximum protection from predators
To identify a weakness in a hypothesis about flock behavior
To emphasize that birds are genetically programmed to fly in certain patterns
4. What point does the professor emphasize when she discusses a leader of the flock?
Birds instinctively imitate their leaders.
A leader can sometimes mislead the flock into danger
Some species of birds do not follow leaders.
A flock does not have a single leader during coordinated group flight.
5. What is the professor’s opinion about computer programs that simulate coordinated group flight?
They rely on rules that real birds may not follow.
They should be used more often by researchers.
They have answered several questions about bird behavior
They only effectively simulate the flight patterns of a few species of birds.
6. Why does the professor mention a study of starlings in Rome?
To show how biologists use computer models to predict the behavior of birds
To give an example of a contribution made by researchers from a discipline other than biology
To contrast the behavior of two species of starlings
To suggest that using the latest technology in research is not always helpful
