Exogenous in origin
Endogenous in origin.
Glands are with ducts.
Their secretion is called hormone.
Their secretion is called enzyme.
Secretion is less in quantity.
Secretion is more in quantity.
Action of hormone is slow.
Action of enzyme is rapid.
Hormone shows prolonged effect.
Effect of enzyme is short lived.
Secretion is poured directly into the blood stream.
Secretion is poured through ducts.