Question

What are animal hormones write their two characteristic?

Answer 1

Larger complex animals like vertebrates have endocrine glands to produce hormones. The well-known animal hormones are insulin, estrogen, testosterone. They are made by endocrine glands of vertebrates. Hormones are made by all organ system and tissues in the body.
characteristics are-
1)Endocrine glands also known as ductless glands are secrete hormones. 
2)Hormones are directly secreted into the blood stream. 

Answer 2

What are animal hormones?

The special Chemicals that regulate the psychological process in animals.

Write their two characteristic.

1. Secreted by ductless gland or endocrine gland directly into the blood.
2. They are slow acting.
3. They are produced in a very small amount.
4. They are destroyed soon after their action.
5. Also adjust and restore homeostasis.
6. They Trigger specific Chemicals & psychological process in their target cell.