Answers

2014-05-23T13:50:00+05:30
We cannot digest cellulose because cellulose is a polymer and enzymes is present only in cattle animals. we do not have enzymes to digest cellulose. 
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2014-05-23T15:28:41+05:30
Because we are hman and made up of protiens.only plants can digest.we do not have enzymes to digest it but plants have
 
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