The goal is to find the sentence that doesn't belong in a paragraph discussing gender as either a natural or social construct. Let's examine each sentence:
- No credible researcher of human behavior would claim gender is solely determined by nature or solely by nurture.
- Evidence of a biological basis for gender does not justify complacency regarding sexism.
- Many find the notion that gender is not entirely a social construct unsettling.
- Despite this empirical reality, researchers studying the biological basis of gender frequently encounter political opposition.
- There is a political inclination to view gender as purely a social phenomenon, making it entirely changeable.
Sentences 1, 3, 4, and 5 all focus on the nature vs. nurture debate surrounding gender and the political consequences of viewing it as a social construct. Sentence 2, while important, shifts the focus away from the main discussion about perception and the challenges faced by researchers. Therefore, the sentence that stands out is:
Sentence 2: Evidence of a biological basis for gender does not justify complacency regarding sexism.