Question

a gland that is involved in immune responses is the
multiple choice
thyroid gland.
parathyroid gland.
thymus gland.
spleen.

Explanation:

The thymus gland is crucial for T - cell maturation, which plays a major role in immune responses. The thyroid gland is related to metabolism regulation, the parathyroid gland to calcium - phosphate balance, and the spleen is an organ (not a gland) also involved in immunity but the question asks for a gland.

Answer:

C. thymus gland