But few human behavioral traits are directly inherited the way simple physiological traits are (e.g., eye color).
(few human behavioral traits; are directly inherited; the way simple physiological traits are (e.g., eye color)) (simple physiological traits; are; e.g., eye color)
few human behavioral traits simple physiological traits
are directly inherited are
the way simple physiological traits are (e.g., eye color)
e.g., eye color