L4：
1. What is this lecture mainly about?
A typical Nepenthes habitat in Northeast Asia
New research findings regarding the life cycle of Nepenthes plants
A comparison of the predatory strategies of carnivorous plants and animals
An unusual characteristic of some species of Nepenthes plants
2. Why does the professor mention the soil in the forests of Southeastern Asia?
To suggest that Nepenthes plants are not native to that region
To explain why Nepenthes plants need to trap insects
To illustrate a difference between Nepenthes and other carnivorous plants
To provide an explanation for the different shapes and sizes of Nepenthes species
3. According to the professor what purpose is served by the waxy layer of the Nepenthes pitcher?
It attracts insects to enter the plant.
It produces the piant’s digestive enzymes.
It causes insects to slide down info the fluid in the pitcher.
It secretes a sticky substance that keeps trapped insects from escaping.
4. According to the professor what features of the Nepenthes Peristome help the plant catch insects?（多选题）
If has glands that produce nectar.
Its surface does not repel water.
If is slippery even when dry.
If has colorful markings that confuse some insects.
5. The professor explains that the Nepenthes plants trapping mechanism is not consistently activated by the presence of the ant. What does the professor imply about this inconsistency?
It might enable the plant to capture more prey over the long term.
It might explain why the plant has other ways of capturing prey.
It might result from the plants need for resting periods.
It might result from the severity of tropical rains.
6. What does the professor imply when she says this:
She has forgotten to include some important details.
Material she has just presented will be explained by her following statements.
Students may be surprised by additional findings.
She doubts that the researchers’ conclusions will be supported by further study.
