The exoskeleton of insect is formed of chitin. This is a ------

Options :
  1. mucoprotein
  2. lipid
  3. lipoprotein
  4. polysaccharides
Answer and Explanation :-

Answer: Option 4

Explanation:

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And in despair I bowed my head "There is no peace on earth," I said "For hate is strong,And mocks the songOf peace on earth, good-will to men!"Then pealed the bells more loud and deep:"God is not dead, nor doth he sleep!The Wrong shall fail,the Right prevail,With peace on earth, good-will to men!
-Henry Wadsworth Longfellow