In order to be considered valid, a supreme court decision must
be agreed to by
a
six of the nine justices
b
all of the nine justices
ww
seven of the nine justices
d
five of the nine justices

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.

answer; ///biological psychologists;