(a) What is an exocrine gland? Name two exocrine glands.
(b) What is an endocrine gland? Name two endocrine glands.
Name any two glands which function as endocrine glands as well as exocrine glands.
Name one gland each :
(a) which acts only as an endocrine gland.
(b) which acts only as an exocrine gland.
(c) which acts both as an endocrine gland as well as an exocrine gland.