Estrogen has the following effects on the growing skeleton EXCEPT:

Estrogen plays a significant role in skeletal growth and development, primarily by promoting bone density and influencing bone growth. One of the well-recognized effects of estrogen is its impact on the closure of growth plates (epiphyseal closure), which ultimately regulates height. Estrogen promotes the closure of the epiphyseal plates in long bones, leading to the cessation of height increase once the growth plates close.

The increase in bone density is attributed to estrogen’s role in enhancing osteoblast activity, while inhibiting osteoclast activity, which leads to greater bone mass. Estrogen influences growth patterns and bone structure, but it does not lead to an overall increase in the height of the pelvis compared to males, as pelvic dimensions are influenced by a variety of factors including genetics and overall body structure. Thus, the notion that estrogen increases the height of the pelvis compared to that of males is not accurate.

Given that the other options depict established effects of estrogen concerning bone density, growth, and closure of the epiphyseal plates, the statement regarding an increase in pelvic height compared to males is the correct exception.