Question

​chemical coordination is done in humans with the help of which hormone

Answer 1

Hey Friend,

There are many hormones which control the chemical coordination in humans. 

1. Pituitary gland -

 (i) Anterior lobe secretes growth hormone/somatotropic hormone, Thyroid stimulating hormone, adrenocorticotropic hormone, follicle stimulating hormone, lutenizing hormone, prolactin hormone.

(ii) Posterior lobe secretes oxytocin and vasopressin/Anti-diuretic hormone.

2. Thyroid gland - 
    It secretes T4, T3 (thyroxin) and calcitocin.

3. Adrenal gland -

(i) Adrenal cortex secretes glucocorticoids, mineralocorticoids, adrenocorticoids.

(ii) Adrenal medulla secretes Adrenaline (epinephrine) and nor-adrenaline (nor-epinephrine) 

4. Pancreas -
It secretes Insulin, glucagon and somatostatin.

All these hormones are chemical substances secreted in trace amounts by their endocrine glands and are the means of information transmission.

Hope it helps!