>> the question assumes a
>>dichotomy between the "physical" and the "environment" that does not exist.
>
>
> Frankly, though this sounds rather grand, it's also
> nonsensical. People are born with spinal cords, livers,
> etc. These structures are not "socially conditioned",
> and they can do certain things and not others, period,
> full stop.
The existence of people with spinal cords, livers, etc is due to the expression of genetic instructions in a socially conditioned environment. Again, the fundamental error here is assuming that there are some biological factors that exist as independent elements that influence the development of human characteristics.
Miles