L3
讲座
1. What does the professor mainly discuss?
The relationship between an animal’s body size and its ability to store fat
A rule in biology that states the relationship between climate and an animal’s body size
A controversy about whether Bergmann’s rule applies to mammals and birds
A comparison of the surface area of various warm and cold environment animals
2. What point does the professor make about white-tailed deer living in warm environments?
Their habitat is getting smaller.
They may be smaller than those living in cooler areas.
They move over a larger range than those living in cooler areas.
Their method of heat conservation is similar to that of many cold-blooded animals.
3. What point does the professor make when she discusses heat conservation in animals that live in cold climates?
The texture of an animal’s body surface does not affect heat conservation.
Animals with similar body shapes and sizes may conserve heat very differently.
Heat conservation was not considered as a factor when Carl Bergmann proposed his rule.
Heat conservation is affected by the relationship between an animal’s surface area and its volume
4. What does the professor say is a less-common explanation for Bergmann’s rule?
Animals in cold climates need to store more body fat than animals in warm climates
Animals in cold climates mature more quickly than animals in warm climates.
Animals in cold climates are less active than animals in warm climates.
Animals in cold climates face fewer predators than animals in warm climates
5. What can be inferred from the professor’s discussion of studies that investigated turtles, snakes, and lizards?
The professor considers the methods used in the studies to be outdated.
Like most biologists, the professor initially disagreed with the first study’s conclusions.
It is not yet clear to the professor whether turtles, snakes, and lizards follow Bergmann’s rule.
The professor believes that turtles, snakes, and lizards are more likely to follow Allen’s rule than Bergmann’s rule
6. Based on the professor’s description, what is an example of Allen’s rule?
Young bears usually grow to the same height as their parents.
Dogs with longer legs will be able to conserve heat better than those with shorter legs.
Rabbits living in cooler climates will have shorter ears than those living in warmer climates.
Birds living in cooler climates will have fewer feathers than those living in warmer climates.
