6. i think is D
7. is C. i know that one for sure bc it was on my test to
8. true i think
and the first one at the very top i think is B
I think it's B. To provide access to blood and blood products
I would say if you didn't get enough nutrients due to a poor diet then you will not get enough vitamin and minerals to support healthy bones therefore leading to osteoporosis.
A. Should be based on research