What are animal hormones? Mention their characteristics. List the important hormones necessary for a healthy living

Explanation

Honnones are secretions from endocrine glands or ductless glands, poured directly into blood and which act on target organs or cells away from their source.
a. They are secreted by endocrine glands directly into the blood.
b. They act away from their site of production .
c. They are required in small quantities.
d. Deficiency or over secretions of hormones have negative effects in the body.
e. Hormones are specific in their action.
The impotant animal hormones are
(a) Thyroxin (b) Adrenline (c) Insuline (d) Testosterone. and \ (e) Oestrogen