Answers

2015-05-13T18:27:57+05:30
In multicellular organisms, the different types of tissues perform different functions. Since a particular group of cells carry out only a particular function, they do it very efficiently. So, multicellular organisms possess a definite division of labour. 
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2015-05-13T19:07:20+05:30
In a multi-cellular organisms various processes are done by various tissues which are specialised in it.thus,it (the multi-cellularity) helps in carrying out the functions more efficiently.
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