One of the central conflicts in the play centers around the future leadership of rome. which best explains how this conflict is resolved? antony decides to march to sardis to face brutus and cassius. brutus gives his speech at caesar's funeral. brutus accuses cassius of being corrupt. brutus and cassius are defeated at philippi. question 17 choose the answer. which best identifies the element of plot that the third act of julius caesar depicts? exposition climax rising action falling action question 18 choose the answer. which best describes the relationship between the argument between brutus and cassius and brutus's internal conflict? both suggest that caesar's death was unnecessary. both arise from the fact that brutus is constantly wondering if he's truly doing what's best for rome. both are signs that brutus is dishonorable and unt

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as university of miami psychologists debra lieberman and adam smith pointed out in a recent article in the journal current directions in psychological science, humans have social and psychological mechanisms to deter incest. with very few exceptions, marriages between brothers and sisters and between parents and their children are verboten in every human culture. the primary psychological anti-incest mechanism is the yuck response. even the idea of sex with their mom or dad, bro or sis is upsetting to most people. the psychologist jonathan haidt has found that nearly everyone is repelled by the prospect of brother-sister sex, even in hypothetical situations in which there is no chance of pregnancy).

the biological cost of incest

this raises an interesting question: just what’s so bad about incest? sure, having sex with your dad or your sister seems gross — but why? some anthropologists have argued that incest taboos are learned social conventions. this explanation, however, doesn’t make sense to me as it does not explain the widespread existence of anti-incest mechanisms in creatures ranging from cockroaches to chimpanzees. second, the incest taboo is about as close to a universal law as human moral rules get.

why should mechanisms to avoid incest be so widespread both in nature and across human societies? the answer is simple. the problem with having sex close with relatives is that there is an astonishingly high chance that your offspring will be born with a serious birth defect.