The upper part of the trapezius muscle is the primary target of the shoulder shrug. The trapezius is a triangular muscle that makes up the upper back, running from the back of the neck and down along the spine, lying over the shoulder blades.
Which of the following statements is TRUE? sex and gender refer to the same thing. sex and gender are both dichotomous classifications. sex refers to biological characteristics, whereas gender is the social construction of femininity and masculinity. both sex and gender are biological constructs.
A distinction is sometimes made between sex and gender. Sex differences generally refer to traits that are sexually dimorphic. Such differences are hypothesized to be products of the evolutionary process of sexual selection. By contrast, the term gender differences refers to average group differences between males and females that are presumably based on sexually monomorphic (the same between the sexes) biological adaptations.