These two structures work together to stop materials from entering the nose and mouth.

a
Thymus and Lymph nodes
b
Spleen and Appendix
c
Adenoids and Tonsils
d
Thymus and Bone Marrow

Respuesta :

Answer:

c

Explanation:

answer: c
explanation: tonsils are a big part of your immune system. They help you trap bad bacteria you might breath in. Adenoids are located in the back of your throat and just like tonsils they help fight away infection.