In Paragraph 2, the author states that waterwheels and windmills
A. led to the rise of Manorialism in Europe.
B. were adopted by European farmers from other peoples.
C. significantly altered agriculture in Europe.
D. were invented in the Muslim world after 1000 ＣＥ.
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According to Paragraph 1, many snake species have the ability to
A. stick out their tongues while their mouths are shut.
B. imitate the behavior. of lizards.
C. bring prey into their mouths with their tongues.
D. retract the lips from their jaws.
In cross matching, how does a compatible match appear under the microscope？
All of the cells are at an equal distance from each other.
B. The arrangement of the cells looks like two parallel lines.
C. The cells tend to group together in a large clump.
D. The red cells and the plasma separate in an irregular pattern.
Why does the woman say this:
A. She is not sure about her observation.
B. She is insulting the man with this comment.
C. She is certain the man agrees with her.
D. She is asking for the man's opinion.
Why does the professor mention fingerprints？
A. To demonstrate that blood types are different for individuals
B. To explain how most of the blood tests are performed
C. To explain why O blood is considered universal
D. To help students remember the different antigens
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