1. What is the main purpose of the lecture?
- A.To illustrate how phytoliths are beneficial to plants
- B.To demonstrate how phytoliths are used in scientific research
- C.To compare methods of analysis used in archaeological study
- D.To explain how maize was first domesticated
2. What is one way that phytoliths form?
- A.Grains become preserved between mineral layers in soil.
- B.Groundwater causes some of the plant tissue to decay.
- C.Minerals from groundwater collect in the cells of plants.
- D.Leaves of plants photosynthesize sunlight into minerals.
3. What point does the professor make about closely related plants such as wheat and barley?
- A.It was impossible to see the differences in the shape of their phytoliths until recently
- B.Their seeds can be identified using election microscopes
- C.It was unknown until recently that their phytoliths decay at different rates
- D.Their phytoliths are typically found it in vessels used for cooking
4. Why does the professor discuss maize?
- A.To point out that phytolith analysis has proven how widespread its cultivation actually was
- B.To provide an example of a plant whose phytoliths are unique
- C.To emphasize the surprising number of subspecies that were suitable for domestication
- D.To show that phytolith analysis can reveal the timing of a plant’s domestication
5. Why does the professor discuss the function of pollen?
- A.To describe the reproductive process is some plants
- B.To show why pollen does not decay as rapidly as other parts of plants
- C.To explain why pollen can be an unreliable source for archaeologists
- D.To illustrate why archaeologists find more pollen than phytoliths in soil
6. Why does the professor say this: 🎧
- A.To provide an explanation for the statement she just made
- B.To find out the students’ opinions about a research method
- C.To review information about plant eaters from last class
- D.To suggest that plant eaters have a difficult choice to make