Question

which of the following glands is not an endocrine gland?

a lymph gland

b pituitary gland

c thyroid gland

d pineal gland

Explanation:

Endocrine glands secrete hormones directly into the bloodstream. The pituitary gland secretes hormones like growth hormone. The thyroid gland secretes thyroxine. The pineal gland secretes melatonin. Lymph glands (lymph nodes) are part of the lymphatic system and filter lymph, not endocrine function.

Answer:

A. lymph gland