. Given below is an outline diagram of human body showing position of certain organs


human

(a) Name the parts numbered 1 to 4.
(b) What is common to all these parts in regard to the nature of their functions?
(c) Name the nutrient element which is essential for the normal working of part 2.

Best Answer

(a) 1- Pituitary gland, 2 - thyroid gland, 3 - pancreas, 4 - adrenal glands
 
(b) All the glands shown in the above diagram are endocrine glands. They secrete essential hormones and pour their secretions directly into the blood.
 
(c) Iodine is essential for the normal working of thyroxine.
 

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