The characteristics of hormones are :-
- Hormones are specific chemical messenger.
- Hormones are secrated in small amounts by endocrine glands
- Hormones are poured directly into the blood and carried by blood circulation.
- Hormones act on specific tissue or organ called target organ.
- Hormones are mostly proteinaceous in nature or are the steroids.
- Hormones immediately disappear after their action is over.