Which of the following pairs of organs includes only the endocrine glands?
(1) Adrenal and Ovary
(2) Parathyroid and Adrenal
(3) Pancreas and Parathyroid
(4) Thymus and Testes
Sol. Answer (2)
Testes, Ovaries and Pancreas have both exocrine and endocrine functions; but
Parathyroid and Adrenals have only endocrine function.