Haritha,SUBJECT MATTER EXPERT at Edumarz
Solution: In animals, chemical coordination takes place with the help of substances called hormones.
Hormones are chemical messengers present in living organisms
It helps to control the physiological functions of living organisms
It is produced by endocrine glands present in the body
Endocrine glands in animals include adrenal gland,thyroid,thymus etc.
Properties of hormones
They possess low molecular weight
They are easily soluble in water
They present in very low concentration
They are present in an inactive form called prohormone
Adapting to the changes in environment