Why does the professor mention the coat of arms of Canada？
A. To compare the symbolism to that of a totem pole
B. To prove that the Haida live in Canada
C. To argue that the Haida symbols are superior
D. To place the events in chronological order
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What are neurotransmitters？
A. Chemical imbalances
B. Chemicals in the brain
C. Images of the brain
D. Genetic triggers
According to Paragraph 3, how did Neptunism account for the multiple layers of rock found
A. They were caused by the failure of some minerals to fuse into crystals.
B. Each was deposited by a distinct extreme flooding event.
C. They were the result of an uneven distribution of minerals in the water.
D. The ancient ocean evaporated little by little, leaving rocks at each layer.
What is the man's problem？
A. He is taking too many classes this semester.
B. He is failing one of his required courses.
C. He has a problem with his academic advisor.
D. He took classes with heavy reading assignments.
What assignment does the professor give his students？
A. They are supposed to identify patterns in the classroom.
B. They should be prepared for a quiz on this lecture.
C. They need to go to the lab to complete an experiment.
D. They have to design a pattern that includes symmetry.
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