What topics does the professor mainly discuss？ Click on two answers.
A. How predators find, catch, and eat prey
Behaviors that help prey avoid predators
Changes in predator and prey populations
Defensive coloration in prey animals
What point does the professor make about the snow that forms a glacier？
A. It is conserved.
B. It is light and fluffy.
C. It is denser than ice.
D. It is very dirty.
According to the conversation, which statements about peregrine falcons are true？ Click on
A. They naturally prey on geese and ducks.
B. They are the largest of all predatory birds.
C. They are more intelligent than geese.
D. They can fly faster than any other bird.
Listen again to part of the lecture. Then answer the question. Why does the professor say
A. To explain why it snows frequently in the mountains
B. To show why mountain scenery attracts many visitors
C. To describe conditions that lead to glacier formation
D. To compare mountain glaciers with Arctic ice sheets
微信支付 
支付宝支付