Alex and shayna are brother and sister and are both college students. research on gender differences would lead one to anticipate that alex is likely to detect faint odors and likely to smile frequently than his sister shayna.

Research on gender differences would lead one to anticipate that Alex is "less" likely to detect faint odors and "less" likely to smile frequently than his sister Shayna.

Men and females enormously vary in their perceptual assessment of odors, with ladies outflanking men on numerous sorts of smell tests. Women’s unrivaled olfactory capacity is a fundamental characteristic that has been acquired and afterward kept up all through evolution, a thought communicated by Romanian dramatist Eugene Ionesco when he said "a nose that can see is worth two that sniff."

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