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Solution


Q.

Read the passage given below and answer the following questions from (i) to (v).


Hormones act as chemical messengers that are released into the blood stream to act on an organ in another part of the body. Endocrine systems, also referred to as hormone systems, are found in all mammals, birds, fish, and many other types of living organisms. They are made up of: (a) glands located throughout the body, (b) hormones that are made by the glands and released into the bloodstream or the fluid surrounding cells, and (c) Receptors in various organs and tissues that recognise and respond to the hormones.

 

(iii) Which one of the following statements is not true
1 Growth hormone is one of the hormones secreted by the pituitary.  
2 Changes associated with puberty are because of the secretion of testosterone in males and oestrogen in females.  
3 Hormones help in coordinated growth.  
4 Control and coordination in human body depends only upon endocrine system.  

Ans.

(4)