Question
Biology Question on chemical coordination and integration
Which one of the following pair of organs include only endocrine glands ?
A
Thymus and testes
B
Adrenal and ovary
C
Parathyroid and adrenal
D
Pancreas and parathyroid
Answer
Parathyroid and adrenal
Explanation
Solution
Parathyroid and adrenal glands are the the endocrine glands because these manufacture hormones and secretes them directly into the blood stream to act at distant sites in the body. Thyroid and pituitary are its other examples.