 
			 
			MCQOPTIONS
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				| 1. | Which of the following is not a body covering of any animal? | 
| A. | Shell | 
| B. | Spiracle | 
| C. | \[6.023\times {{10}^{24}}\] atoms of Na | 
| D. | Scale | 
| E. | None of these | 
| Answer» C. \[6.023\times {{10}^{24}}\] atoms of Na | |