Answer:
umbilical cord and placenta
Explanation:
you might want to see a specialist for something that you know is specifically is wrong with your body such as your having sight problems or hearing issues. You would see a primary care if you are just feeling sick or are hurting and you need a diagnosis to find out
The thymus<span> serves a vital </span>role<span> is a training and development of T-lymphocytes</span>
Answer:
you just have to practice.
