Paraphrase:Some modern anthropologists say biological evolution has shaped both morphology and human behavior. According to them evolution controls human behavior by restricting, not by dictating, human behavior. Restriction is done by controlling ways of feeling, thinking and acting - these are typical to any culture. Our(Human) weaknesses (emotions and motives such as rage, fear etc) may be unique in their own way, but still they share a common character. i.e Humans are controlled by these weakness(frailties).
Unfortunately, some of these weaknesses (frailties) are presently out of order (maladaptive = wrongly configured). These weaknesses may seem to be determined by culture,but biology(evolution) plays a great role as well. We have to completely understand how these weaknesses originated, then only we can understand how they restrict us. And if we understand how they restrict us, we might get out of their restriction.
1. The primary purpose of the passage is to present
A. a position on the foundations of human behavior and on what those foundations imply
Correct: The passage first says what position the anthropologists hold(evolution-human behaviour relationship), then say what we get of this position(we can get out of maladaptive behavior)
B. a theory outlining the parallel development of human morphology and of human behavior
Incorrect: The passage just mentions evolution shapes both morphology and human behavior. It never draws parallel. All the description is about human behaviour only.C. a diagnostic test for separating biologically determined behavior patterns from culture-specific detail
Incorrect: No test is mentioned. The passage just says, behavior patterns are influenced by both culture(superficially) and biologically(may be actually). But never tries to separate them.
D. a practical method for resisting the pressures of biologically determined drives
Incorrect: No method is suggested. The second paragraph just mention, if we understand origin of biologically determined drives, we may someday control it. It is a theoretical possibility or unproven hypothesis, not a certain practical method.
E. an overview of those human emotions and motives that impose constraints on human behavior
Incorrect: Human emotions and motives do not impose constraints on human behavior. But evolution does. No overview is provided about emotions and motives, they are just mentioned. Paragraph is all about how evolution shapes human behavior and emotions and motives just come within the scope.
2. The author implies that control to any extent over the “frailties” that constrain our behavior is thought to presuppose
A. that those frailties are recognized as currently beneficial and adaptive
Incorrect: Some of them are maladaptive.B. that there is little or no overlay of cultural detail that masks their true nature
Incorrect: Too negative, the author says frailties are masked by culture. ( beneath the overlay of cultural detail)C. that there are cultures in which those frailties do not “come naturally” and from which such control can be learned
Incorrect: Author never says control can be learned. The passage mentions frailties are typical to any culture and we need to find their origin, if we want to control them.D. a full understanding of why those frailties evolved and of how they function now
Correct: This is what the author says in the last two lines. If frailties were not constraining human behavior, then we will get nothing by understanding the evolution of fralities and the conclusion of the passage becomes illogical.
E. a thorough grasp of the principle that cultural detail in human behavior can differ arbitrarily from society to society
Incorrect: As per the passage, culture superficially constrain frailty and culture differs from society to society. But nothing is mentioned in the passage about understanding of culture.3. It can be inferred that in his discussion of maladaptive frailties the author assumes that
A. evolution does not favor the emergence of adaptive characteristics over the emergence of maladaptive ones
Correct: The author says " We would need to comprehend thoroughly their adaptive origin". Means maladaptive behaviour has adaptive origin. If it is other way arround (adaptive has maladaptive origin), then the author would be at wrong. This option eliminates reverse cause-effect relationship.
B. any structure or behavior not positively adaptive is regarded as transitory in evolutionary theory
Incorrect: Maladaptive behavior: transitory - yes. as per author we might one day change. But Evolutionary theory ? - No, if we can change, it would be in artificial ways, not natural evolution.
C. maladaptive characteristics, once fixed, make the emergence of other maladaptive characteristics more likely
Incorrect: No. Maladaptive behavior has adaptive origin.D. the designation of a characteristic as being maladaptive must always remain highly tentative
Incorrect: No. Nothing is said about definition. We need to study orgin of current maladaptive behavior. If the behavior is not considered maladaptive, we can stop studying its origin. We need not fix the definition.E. changes in the total human environment can outpace evolutionary change
Incorrect: Nothing is mentioned about priorities. Human environment(less specifically culture) may be only outer layer in behavior determinants, nut they needn't necessarily outpace evolution.