Proofread the given passage on ANSWER SHEET TWO as
instructed. For a wrong word, underline the wrong word
and write the correct one in the blank provided at the end of the
line. For a missing word, mark the position of the
missing word with a "∧" sign and write the word you believe to be missing in the
blank provided at the end of the line. For an unnecessary
word, cross the unnecessary word with a slash "—" and put the word in the blank
provided at the end of the line.
Before considering this question it is interesting to review
briefly the evolution of the (1) ______ mind as the instrument.
The commonest way that has been used to find out the relative intellectual
level of creatures at different stage of evolutionary complexity has been to
(2) ______ study the way they behave when giving
different kinds of puzzles. For example, an ant
(3) ______ possesses a complex routine of behaviour, but can it
think The answer is what if an ant is (4) ______ forced
to go through a maze of passages; many of which are dead ends, on its way to
its nestle, it starts by making a lot of mistakes and taking a great many
wrong turnings. In the (5) ______ end, however, after it has to
worry its way through often enough, it does learn to get to its (6)
______ nest without going into any of the blind alleys. As one moves up the
evolutionary scale the test of mind-power exemplified by solving the problem
of getting through a maze be
(7) ______ comes very simple. Among mammals, for example, the maze is an
inadequate test. The (8)
______ learning problem does not tax enough attributes of the mind. In this
sort of learning, as a matter of fact, rats can hit university undergraduates
and have, in fact, repeatedly done so. (9) ______ The next, more
subtle test of mental ability is to see what level an animal can think about
(10) ______ something when it is not there.