No significant gender difference in average IQ scores between men and women. Both genders have an average IQ of 100. Men excel in spatial intelligence and math, while women score higher on verbal tests
Human skeleton consists of 270 bones at birth, decreasing to 206 by adulthood. Divided into axial (80 bones) and appendicular (126 bones) sections. Bone mass makes up 14% of total body weight, reaching maximum between 25-30
Motor skills involve specific body movements for tasks like walking and running. Gross motor skills use large muscle groups for continuous tasks. Fine motor skills require smaller muscles for precise movements
Brain size can be measured by weight, volume via MRI or skull measurements. Human brain weighs about 1.5 kg, with volume around 1260 cm³ in men. Brain size varies between species and within individuals. Brain-to-body mass ratio follows power law with exponent of 0.75
Gender choice determines available romance options. Male characters have different hairstyles and beard settings. Voice tone affects pronouns and terms used by other characters
Sex differences result from different chromosome complements and hormone exposure. Females have XX chromosomes, males have XY chromosomes. X-chromosome inactivation enables equal gene expression in females