MCQOPTIONS
Saved Bookmarks
| 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 | |