| 1 | Lichens adhere to rocks and tree trunks. | |
| 2 | This germ is found on the things used by the patients. | |
| 3 | Then the lump or cancer attaches itself to this wall. | |
| 4 | Sticking to but not fused with a part or an organ of the same kind. | |
| 5 | Winter tyres give increased traction in mud or snow. |