Which of the following is true about Martin's theory, as that theory is described in the passage?

The passage mentions the extinction of species other than large animals (see highlighted text) most probably in order to

In the last sentence of the passage, the author refers to "recent archaeological discoveries" (see highlighted text) most probably in order to

The passage suggests that Krech would be most likely to agree with a theory of the Pleistocene species extinctions that

Which of the following, if true, would most weaken Krech's objections to Martin's theory?

The author of the passage commends Noble's book for which of the following?

Which of the following best characterizes Forces of Production as it is described in the passage?

The passage suggests which of the following about N/C automation in the machine-tool industry?

According to information in the passage, the term “de-skilling” refers to the

The author of the passage would be most likely to agree with which of the following statements about the explanation outlined in the highlighted text?