Exchange systems help primarily with:
a. balance.
The nucleolus,the RNA,the DNA,and the protiens
You could ask her questions like, is there pain when laying down? You could ask if she had been experiencing <span>difficulty heel walking or toe walking. Ask her if she has been experiencing numbness or tingling in her back. I hope I could be a help.</span>
D. Mississippi
I bet. Or Cali maybe, but with how poor MS is, I bet its that.
Answer: It is endocrine system
Explanation: