A.Secreted in restricted areas and influence the activities of various parts of body
B.Secreted in various parts of body but have activity in limited area
C.Secreted only in the animals but not in plants
D.None of these
A.Secreted in restricted areas and influence the activities of various parts of body
B.Secreted in various parts of body but have activity in limited area
C.Secreted only in the animals but not in plants
D.None of these