Cambridge ielts 1-15 series reading answers explained

=> ANSWER: NOT GIVEN
24. SOME PEOPLE MAY BELIEVE THAT THE TEACHER-SUBJECTS‟ 
BEHAVIOUR COULD BE EXPLAINED AS A POSITIVE SURVIVAL 
MECHANISM. 
Keywords: behaviour, positive survival mechanism 
In paragraph F, the writer explains that: “A modern hard-core sociobiologist might even go so far as 
to claim that this aggressive instinct evolved as an advantageous trait, having been of survival value to 
our ancestors in their struggle against the hardship of life…” This means the teacher-subjects‟ 
behaviour evolved as an advantage in helping our ancestors survive. So it is a “positive survival 
mechanism” 
– advantageous trait = positive or useful characteristic that can produce a particular behaviour 
– mechanism =a way of doing something planned 
=> ANSWER: TRUE
25. IN SOCIOLOGICAL EXPLANATION, PERSONAL VALUES ARE MORE 
POWERFUL THAN AUTHORITY 
Keywords: sociological, personal values, authority 
In paragraph H, the writer states: ” Thus, in this explanation,the subject merges his unique personality 
and personal and moral code with that of larger institutional structures, surrendering individual 
properties like loyalty, self-sarcrifice and discipline to the service of malevolent systems of authortity” 
This means that systems of authority are more powerful that individual personal and moral values. 
– surrender (to sth) = admit defeat/ stop trying to control something, because you are weaker/less 
powerful 
personal values= individual properties/personal and moral code 

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=> ANSWER: FALSE
26. MILGRAM‟S EXPERIMENT SOLVES AN IMPORTANT QUESTION IN 
SOCIOBIOLOGY. 
Keywords: solves, important, sociobiology 
In the last paragraph , the writer indicates that : ” Here we have two radically different explanations 
for why so many teacher-subjects were willing to forgo their sense of responsibility for the sake of an 
institutional authority figure”, and ” Put another way, sociobiology is concerned with elucidating the 
biological basis of all behaviour.” This means that the important question in sociobiology is making 
clear the biological basis of all behaviour. Milgram‟s experiment did not solve it, it just brought out 
two different explanations for the results he obtained.