Final Answer:
The pelvis is the second best area to look when determining sex.
Step-by-step explanation:
When determining the sex of an individual, the pelvis is a crucial anatomical region to consider, serving as the second best area for sex determination after the examination of reproductive organs. The pelvis exhibits sexually dimorphic features that reflect differences between males and females. In females, the pelvic bones tend to be wider and adapted for childbirth, whereas in males, the pelvic structure is generally narrower. These distinctions become more pronounced during puberty. While external genitalia provide the most direct indicators of sex, the pelvis offers valuable information, especially in situations where a visual inspection of reproductive organs is not feasible.