Question

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

Explanation:

1. Parathyroid gland: Regulates calcium levels, not immune responses.
2. Thyroid gland: Regulates metabolism, not immune responses.
3. Spleen: An organ (not a gland) involved in immune response and blood filtration.
4. Thymus gland: A gland where T - lymphocytes mature, crucial for immune responses.

Answer:

D. thymus gland