Question

what lymphoid tissue forms a ring around the openings of the gi and respiratory tracts?
lymph nodes
spleen
peyer’s patches
tonsils

Explanation:

Tonsils are lymphoid tissues that form a ring (Waldeyer's ring) around the openings of the gastrointestinal and respiratory tracts, providing immune - defense at these entry points. Lymph nodes are distributed throughout the body, the spleen is an organ in the abdomen, and Peyer's patches are in the small intestine.

Answer:

D. Tonsils