Reading part 3 + part 4

21. According to the text, what happened in the 1980s?

• A research into American Indians teeth was first conducted

• Researchers started investigating the distinctive features of American Indians.

• Studies on human kidneys were encouraged.

• A shared characteristic of American Indians and Asians was discovered.

22. The word “distinctive” in paragraph 1 is closest in meaning to_______.

• new

• simple

• different

• particular

23. Recent studies found that Navajos carry the strain of virus similar to that of_______.

• Japanese

• Asians

• Europeans

• Africans

24. According to paragraph 2, why did Stone Age tribes begin to migrate into Beringia?

• To intermarry with tribes living there

• To trade with tribes that made tools

• To hunt for animals in the area

• To capture domesticated dogs

25. All of the following animals are mentioned as examples of large mammals EXCEPT_______.

• saiga

• bison      

• camel

• goat

26. The phrase “Accompanied by” in paragraph 2 is closest in meaning to_______.

• found with

• joined by

• threatened by

• detoured with

27. The word “which” in paragraph 3 refers to_______.

• migrations

• evolution

• geneticists

• populations

28. Why does the author mention blood types in paragraph 3?

• Comparisons of blood types in Asia and North America established the date of migration

• The presence of type B in Native Americans was evidence of the migration.

• The blood typing was similar to data from both Japan and Scandinavia.

• Blood types offered proof that the migration had come from Scandinavia.

29. Which blood type do most Native Americans have?

• Type A    

• Type B

• Type AB

• Type O

30. How did groups migrate into the Great Plains?

• By walking on a corridor covered with ice

• By using the path that big game had made

• By following a mountain trail

• By detouring around a huge ice sheet